They______him if they would come there the day after

Choose the best answer to each question. 

If you want to telephone him you will have to ________ the number in the book.

Each of the following sentences has an error. Find the errors and correct them.

The main divisions of geologic time, called eras, are subdivided in periods.

Identify the one underlined word or phrase that must be changed to make the sentence correct.

Unless (A) you pour (B) oil on (C) water, it will float (D).

Choose the best answer to fill in the blank:

Mary’s eyes are weak, __________, she has to wear glasses.

He asked me _______ I believed the ghosts.

It can be black, white __________ gray.

The new models are expensive, _______________ efficient

Each of the following sentences has an error. Find the errors and correct them.

Chemical engineering is based on the principles of physics, chemists, and mathematics.

Choose the best answer to each question.

_______ appears considerably larger at the horizon than it does overhead is merely an optical illusion.

Do you happen to know the name of the _____?

Each of the following sentences has an error. Find the errors and correct them.

The president refuses to accept either of the four new proposals made by the contractors.

Choose the best answer to each question. 

Fire crews have been operating at full_________.

_________ her mother's sickness, she couldn't attend our wedding.

Choose the best answer to each question. 

There is ________ that I may have to go into hospital next week.

Lan spoke English _________ after she lived in England for several months

Choose the best option A, B, C, or D to complete each sentence.

The film is really interesting, ……….?

Choose the best answer to each question. 

She was kept awake for most of the night by the _________of a mosquito in her car.

He is going to the post office_______he wants to send a letter

Choose the best option:

What _____ of learning English do you find most difficult? Is it grammar rules or speaking?

We decided not to go out for meal _________ we were too tired.