19．聽短文，選擇正確答案．短文讀兩遍．
16．Mr．Chaplin can't be here because he's略．
A．gone to England B．ill C．gone to America
17．There is an important略exam today．
A．Math B．English C．Chinese
18．The exam ends at略o'clock this morning．
A.11 B.9 C.7
19．If there is a difficult question，you should略．
A．write it clearly B．a(chǎn)nswer it first
C．go on to the next one and come back to it later
20．Don't leave questions unanswered； sometimes a略may help you get points．
A．guess B．guest C．gate．
