_____ was most important to her was her family.
| A．It | B．This | C．What | D．As |
Scientists say it may be five or six years _____ it is possible to test this medicine to human patients.
| A．since | B．after | C．before | D．when |
At last we reached a lonely village, _______ a beautiful river.
| A．in front of it lay | B．in front of which lay |
| C．in front of it laid | D．in front of which lied |
It was the training ______ he had as a young man _____ made him such an excellent speaker.
| A．which; which | B．which; that | C．that; which | D．that; what |
---Why did you leave that position?
---I a better position at IBM.
| A．offer | B．offered | C．am offered | D．was offered |
--Have you got the leaving time of the train for me?
---Yes, but you’d better ____of it by yourself.
| A．make sure | B．be sure | C．to make sure | D．be certain |