A To make a mess
B To reveal a secret
C To cook food
D To drop something
Explanation: \'Spill the beans\' is an idiom meaning to reveal secret information.
A To hurt oneself
B To do something perfectly
C To build something
D To be exactly right
Explanation: \'Hit the nail on the head\' means to be exactly right about something.
A A dessert
B Something very easy
C A celebration
D A generous gift
Explanation: \'Piece of cake\' means something that is very easy to do.
A To be physically injured
B To be very expensive
C To work very hard
D To lose something valuable
Explanation: \'Cost an arm and a leg\' means something is extremely expensive.
A To free an animal
B To accidentally reveal a secret
C To be careless
D To run away quickly
Explanation: \'Let the cat out of the bag\' means to accidentally disclose hidden information.
A You are playing tennis
B It is your turn to take action
C You have won the game
D You are in charge
Explanation: \'The ball is in your court\' means it is now your responsibility to make a decision or take action.
A To waste resources
B To work late into the night
C To cook food
D To start a fire
Explanation: \'Burn the midnight oil\' means to work or study late at night.
A They heard the voice clearly.
B The voice is heard clearly.
C Someone heard the voice clearly.
D The voice was being heard clearly.
Explanation: In passive voice, the subject receives the action. The active form uses \'They heard the voice clearly\'.
A A letter is written by her every day.
B A letter was written by her every day.
C A letter has been written by her.
D A letter is being written by her.
Explanation: Simple present passive is formed with \'is/am/are + past participle\'.
A All the cookies were eaten by the children.
B All the cookies are eaten by the children.
C All the cookies have been eaten by the children.
D All the cookies had been eaten by the children.
Explanation: Simple past passive is formed with \'was/were + past participle\'.
A The project has been completed by him.
B The project is completed by him.
C The project was completed by him.
D The project had been completed by him.
Explanation: Present perfect passive uses \'has/have been + past participle\'.
A The proposal will be approved by the manager.
B The proposal is approved by the manager.
C The proposal was approved by the manager.
D The proposal has been approved by the manager.
Explanation: Simple future passive uses \'will be + past participle\'.
A He don\'t like coffee.
B He doesn\'t likes coffee.
C He doesn\'t like coffee.
D He not like coffee.
Explanation: For third person singular, we use \'doesn\'t\' followed by the base form of the verb \'like\'.
A She have been waiting for an hour.
B She has been waited for an hour.
C She has been waiting for an hour.
D She has been wait for an hour.
Explanation: Present perfect continuous tense uses \'has/have been + verb-ing\'.
A The informations is useful.
B The information are useful.
C The information is useful.
D An information is useful.
Explanation: \'Information\' is an uncountable noun and takes a singular verb \'is\'.
A He suggested me to go home.
B He suggested that I go home.
C He suggested to me going home.
D He suggested me going home.
Explanation: \'Suggest\' is followed by a that-clause with the subjunctive mood, not by an object + infinitive.
A Each of the students have submitted their assignment.
B Each of the students has submitted his or her assignment.
C Each of the students have submitted his or her assignment.
D Each of the students has submitted their assignment.
Explanation: \'Each\' is a singular indefinite pronoun, so it takes \'has\'. \'His or her\' maintains strict grammatical agreement.
A a
B an
C the
D no article
Explanation: \'The\' is used with superlative adjectives. \'The tallest\' is correct.
Explanation: \'Interested in\' is the correct prepositional phrase.
Explanation: \'Looked through\' means to look from inside to outside via the window.