Nobody knows he has left because he went away saying goodbye to anyone.
A. without B. with C. for D. from
If Mars no air or water, we will not survive there.
A. will have B. would have C. has D. is having
_____with his English, mine is better.
A. Compare B. Compared C. Comparing D. To compare
Now I can see the boat very clearly because it is floating the bank.
A. near B. below C. over D. on
The journey to Mars takes months because the spacecraft flies too slowly.
A. first of all B. in the future C. at present D. in the past
I haven’t prepared dinner. I you would come back an hour later.
A. have thought B. think C. will think D. thought
