If we will reduce (A) the speed of population growth (B) there will be (C) less (D) pressure on the Earth.
A.will reduce (A)
B.will be (C)
C.growth (B)
D.less (D)

If we continue (A) to use fuels (B) at the current rate, we would soon have (C) to face (D) a fuel crisis.
A.face (D)
B.continue (A)
C.would soon have (C)
D.fuels (B)

Choose the sentence which has the same meaning as the given one.The wind is blowing hard, so we won’t take the boat out for a ride.
A.If the wind will be blowing hard, we will take the boat out for a ride.
B.If the wind weren’t blowing hard, we would take the boat out for a ride.
C.
D.If the wind isn’t blowing hard, we will take the boat for a ride.

“If we had a calculator, we could work this out a lot quicker” they said.
A.They said if they have a calculator, they will work this out a lot quicker.
B.They said if they will have a calculator, they work this out a lot quicker.
C.They said if we had a calculator, we could work this out a lot quicker.
D.They said if they had a calculator, they could work this out a lot quicker.

The examiner read the passage very quickly so the candidates didn't understand.
A.If the examiner didn’t read the passage very quickly, the candidates could understand.
B.If the examiner doesn’t read the passage very quickly, the candidates can understand.
C.If the examiner didn’t read the passage very quickly, the candidates would have understood.
D.If the examiner hadn’t read the passage very quickly, the candidates would have understood.

We don't go by air because we do not have enough money.
A.If we had enough money, we would go by air.
B.If we had had enough money, we would go by air.
C.If we have enough money, we will go by air.
D.If we had had enough money, we would have gone by air.

“If you don’t apologize, I’ll never speak to you again” he said.
A.He said if you don’t apologize, he’ll never speak to you again.
B.He said if I didn’t apologize, he would never speak to me again.
C.He said if I don’t apologize, he’ll never speak to me again.
D.He said if hadn’t apologized, he would never speak to me again.

If I weren’t so busy, I _____ go out with my friends.
A.would
B.wouldn’t
C.will
D.would have

If you _____ right now, you will be late for the train.
A.haven’t gone
B.didn’t go
C.hadn’t gone
D.don’t go

If she hadn’t been absent from school on Friday, she ______ what she had to do for homework.
A.will know
B.
C.won’t know
D.wouldn’t know