Use the correct form of the word given in each sentence.

_______ water pollution is an important thing for human life, (prevent)

I'm very tired. I  ......   over four hundred miles today.

Use the correct form of the word given in each sentence.

We find her story hardly _________ . (believe)

Jenny's engagement ring is enormous! It  ........  have cost a fortune.

Choose the best answer: 
While she........... an e-mail to send to her brother, the lights went out.

Choose the word or phrase (a, b, c or d) that best fits the blank space in each sentence.

Helen was going away. We went to the station with her to_______ .

Choose the word or phrase that best completes the sentence.

He asked what time the bank _________ .

Choose the best answer:

There are many _____ in this city.

Choose the best answer:

If a book is really_______, it will certainly_______the reader.

Choose the word or phrase (a, b, c or d) that best fits the blank space in each sentence.

Soon after I_____ for a job with the United Nations two years ago, I________.

Choose the underlined word or phrase (A, B, c or D) that needs correcting.

 Approximately 70 percent (A) of all parents let (B) their children to attend (C) school (D) .

The comedy was so interesting that all ____________ clapped their hands.

Choose the best answer:

She takes _______ her mother; she has blue eyes and fair hair, too.

Choose the word or phrase (a, b, c or d) that best fits the blank space in each sentence.

Ninety percent of ______ occur around the Pacific Rim known as the ‘Ring of Fire’.

She has a highly _______ mind.

Choose the correct answer to complete the sentence: "She walked home by herself, _______ she knew that it was dangerous."

Choose the word or phrase (a, b, c or d) that best fits the blank space in each sentence.

The teachers are looked________ by many people.

Choose the underlined word or phrase (A, B, c or D) that needs correcting.

If he had worked (A) harder, he would have (B) passed the exam that (C) he had taken (D) last month.

Choose the word or phrase (a, b, c or d) that best fits the blank space in each sentence.

If I had gone to the party last night, I_______tired now.

Choose the underlined word or phrase (A, B, c or D) that needs correcting.

Hardly he had (A) entered the office when (B) he realized that he had (C) forgotten (D) his wallet.

I'm busy at the moment. I   .............  on the computer.