— Finished?
— No, I’ve got __________________three questions to answer.
| A．other | B．another | C．these | D．those |
His wife has left him, but he behaved _______ nothing had happened.
| A．even though | B．as soon as | C．as though | D．as long as |
Clearly, in a system _________ every decision is made on the basis of tradition alone, it may be difficult to achieve progress.
| A．that | B．when | C．where | D．which |
Suddenly it _________ to me that I should report the accident to the police.
| A．happened | B．struck | C．occurred | D．hit |
The following chapters provide step-by-step instructions for practical _______ of genetic (基因)engineering to agriculture.
| A．applications | B．organization | C．expression | D．attention |
What a moving _____to see so many people offer help to these in danger!
| A．sight | B．scene | C．view | D．scenery |