Do you think ________ life on Mars?
| A．it exists |
| B．there exists |
| C．it is existed |
| D．there is existed |
We found Mary’s brother to have _____ more story books than Ann’s.
| A．much | B．too much | C．by far | D．far |
If you _____ the medicine you _____ better now.
| A．took ; would feel | B．had taken ; felt |
| C．had taken ; would feel | D．took ;would have felt |
Gone forever ____ when we used foreign oil.
| A．the days are | B．the days were |
| C．are the days | D．were the days |
As she _____ the newspaper, Granny _____ asleep.
| A．read ; was falling | B．was reading; fell |
| C．was reading; was falling | D．read; fell |
I ______, but I was prevent by the heavy rain.
| A．had meant coming | B．had meant to come |
| C．meant to come | D．meant coming |