18． opinions on the schedule.we finally reached on agreement．( )A．Having exchangedB．Exchanging——青夏教育精英家教网——

18．______ opinions on the schedule，we finally reached on agreement．（　　）

	A．	Having exchanged		B．	Exchanging
	C．	Exchanged		D．	To exchange

17．The lecture ________，a lively question-and-answer session followed．（　　）

	A．	being given		B．	having given
	C．	to be given		D．	having been given

16．Shortly after suffering from a massive earthquake and to ruins，the city took on a new look．（　　）

15．They failed to reach a settlement，because theydisagreed（不同意）too much with each other．

14．I'm happy that my 80-year-old grandma has learned how todownload（下载）from the Internet．

13．It wasbrave（勇敢的）of Mary to quit her job and start her own business．

12．Keep in mind that it is a shame towaste（浪费）food．

11．Take the lift to thetenth（第十）floor，and you will find the gym．

10．The first few weeks of thisspring（春天）were unusually cold．

9．These measures are stronglysupported （支持） by environmental groups．

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