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20．Jack，what about going to Paris for our coming holidays？
---Sorry，honey，I _______ on the newly discovered dinosaur site in Argentina．There are remains of _______is thought to be the largest creature ever to walk on the earth．（　　）

	A．	will be working； that		B．	worked； what
	C．	will be working； what		D．	worked； that

分析杰克，怎么樣去巴黎度我們就要來的假期？
對不起，親愛的，我將忙于在阿根廷新發(fā)現(xiàn)的恐龍工地．有許多被認為是地球上行走的最大生物的遺骸．

解答答案：C 考查將來進行時．第一空：題干中談論的是將來發(fā)生的事情，要用將來進行時態(tài)，排除B、D項；第二空：介詞of后的賓語從句中缺少主語，要用連詞what，排除A項，只有C項正確．

點評解答此類問題要了解各種時態(tài)的基本含義，并區(qū)別各種時態(tài)之間的差異，了解某些時態(tài)的特殊用法，然后結合語境選擇正確答案．

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