8．In order to avoid fires or explosions.people not use mobile phones at gas stations．( )A．m——青夏教育精英家教网——

8．In order to avoid fires or explosions，people ________ not use mobile phones at gas stations．（　　）

7．The news saddened the whole nation ________ five boys died of suffocation （窒息）in a rubbish bin．（　　）

6．New house prices in major Chinese cities are continuing to rise，_______ a warming housing market．（　　）

	A．	signalled		B．	to signal
	C．	signalling		D．	having signalled

5．-I'm sure Andrew will win the first prize in the final．
-I think so．He ______ for it for months．（　　）

	A．	is preparing		B．	was preparing
	C．	had been preparing		D．	has been preparing

4．It was only when I reread his poems recently ________ I began to appreciate their beauty．（　　）

3．It is a great honor to be invited to the evening party，thus __________ me to feast my eyes on your excellent performance．（　　）

to have allowed

2．---What were you up to then，Mr Smith？
---I suppose I was conducting an experiment in the lab，_______ I was chatting over a cup of coffee with my friends．（　　）

1．When it ______ cooking，Grandma would become excited，talking to us fluently and endlessly．（　　）

20．-Shall we put off the match because of the bad weather？
-No．Rain or shine，the match will be held as ______．（　　）

19．-Stress can be extremely harmful to your health．Exercise，______，can reduce its bad effects．
-I can't agree more．（　　）

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