6. He asked me what the conservationists __________ so far to protect our environment.
A: do
B: have done
C: did
D: had done
7 Choose the best answer A, B, C or D to complete the sentence.
Question 9. What __________________ if you saw a UFO?
A: did you do
B: will you do
C: do you do
D: would you do
8 Choose the best answer A, B, C or D to complete the sentence.
Question 8. He was the first man _______________ to help the flood victims.
A: arrived
B: to arrive
C: arriving
D: arrive
9 Choose the correct sentence (A, B, C or D) made from the suggested words. Question 23. you/ know/ how much/ time/ he/ spend/ surf/ web/ a day?
A: Do you know how much time he spends surfing the web a day?
B: Do you know how much time does he spend surfing web a day?
C: Do you know how much time does he spend surfing the web a day?
D: Do you know how much time he spends to surf the web a day?