Water has been vital to the development and survivor of civilization. A. has been B. to C. development D. survivor

Correct the the mistakes in the following sentences. Use the future simple and continuous tense.

Don't call me at 10 o'clock. I am going to fly to Spain.

Find the mistake

If (A) you do not understand (B) what were written (C) in the book, you could ask (D) Mr. Pike.

Find one mistake in each following sentence.

If there isn’t enough food, we couldn’t continue our journey.

Write the correct tense or form of the verbs in brackets.

Just a decade ago, cell phones___________ (primarily/ use) for calling people.

Find a mistake and correct it:

We left our luggage at the station and go to find something to eat.

When you bought that new computer a couple of years ago, you definitely thought its 500-mega byte hard disk would last for ever.

Isabel: "You can't borrow my pen, Robert" => Isabel …. .

I haven't seen that man here before. => It's _____.