Not until he retired from teaching three years ago ________having a holiday abroad.
(2012·辽宁，32)
| A．he had considered |
| B．had he considered |
| C．he considered |
| D．did he consider |
New medicines and instruments ______ every day to extend life.
| A．develop | B．are being developed |
| C．are developing | D．have developed |
What I wanted to know was when and where the meeting ______.
| A．was holding | B．had held |
| C．was to hold | D．was to be held |
If you go there alone after dark you might get _____.
A. attacked and robbed B. attacking and robbing
B. to attack and rob D. to be attacked and robbed
A red sky in the morning _____ to be a sign of bad weather.
| A．says | B．is saying |
| C．has said | D．is said |
The president _____ a cool reception when he visited London.
| A．gave | B．was given |
| C．had given | D．had been given |