1.The new law has come into effect, and number of wild animals here is on____increase now.
A. the; the B. a; the C. the; / D. a; /
【答案】A
【解析】
【詳解】考查冠詞及固定搭配。句意:新的法律已經(jīng)生效,野生動物的數(shù)量正在增加。由謂語動詞is可知主語是the number of...,the number of...為固定搭配,意為“……的數(shù)量”;on the increase是固定搭配,意為“在增加”。根據(jù)語境可知,選A。
2.David asked his nephew to ______ his bag while he headed for a drink at the airport.
A. run out of B. keep an eye on C. make up for D. take advantage of
【答案】B
【解析】
【詳解】考查動詞短語。句意:在機場中當David去喝東西的時候,他請求他的侄兒照看他的包。A. run out of用光,用完;B. keep an eye on照看, 照管,留心;C. make up for 彌補,補償;D. take advantage of利用。結(jié)合句意,David離開,則需要有人看包,使用keep an eye on恰當。故選B。
3.Sorry, I would have come earlier, but I ______ that you were waiting.
A. didn't know B. hadn't known
C. don't know D. haven't known
【答案】A
【解析】
【詳解】考查時態(tài)。句意:我本應該早點來,但是我不知道你在等我。I would have come earlier是對過去的虛擬,but后面的內(nèi)容是描述過去的事實,用一般過去時,故選A。