16.With tears on her face, the old lady watched the little boy _______ to a hospital.
A.send B. to be sent
C. being sent D. sending
17.______ the book again, she discovered that she had missed a lot in her first reading.
A.While reading B. When read
C. As reading D. In reading
18.Your experiment reports must be checked with care before ________.
A.handed them in B. them handing in
C. being handed in D. handing them in
19.Mr. and Mrs. Smith didn’t expect the house ______ so well.
A.to be decorated B. to decorate
C. be decorated D. decorating
20.She was sitting in an armchair ______ a book.
A.reading B. to read
C. to be reading D. to have read
答案:16-20 CACAA
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