Question 38. We must take care of all living species on Earth.
A. All living species on Earth are taken care of by us
B. All living species on Earth must be taken care of by us
C. All living species on Earth had been taken care of by us.
D. All living species on Earth will be taken care of by us
Question 39. Many people came to the meeting Some were half an hour late
A Many people came to the meeting some of who were half an hour late
B. Many people came to the meeting, some of whom were half an hour late.
C. Many people came to the meeting, but some of them were half an hour late.
D. Many people who came to the meeting some of them were half an hour late.
Question 40. "Be careful when you cross the road, won't you?"
A. He says I will be careful when I cross the road.
B. He asked me if I would be careful when I crossed the road.
C. He told me to cross the road only when I was careful.
D. He warned me to be careful when I crossed the road.
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