—The light in the office is still on.
—Oh，I forgot __________.
| A．turning it off |
| B．turn it off |
| C．to turn it off |
| D．having turned it off |
The policeman have fined me for speeding but finally，he let me go.
| A．should | B．could | C．must | D．would |
Mike his wedding for a whole month and hopefully everything will be ready tomorrow.
| A．prepares | B．is preparing | C．has prepared | D．has been preparing |
—Michael has changed beyond recognition.
—！How did he manage to lose so much weight？
| A．So has he | B．Neither has he | C．So he has | D．Neither he has |
Your time is running out. Change your mind it is too late！
| A．since | B．when | C．until | D．before |
of the three students can repair your computer. They are all experts.
| A．Whatever | B．What | C．Whichever | D．Which |