If we had taken such effective measures much earlier, the river ________ so seriously now.
A. is not polluted B. would not be polluted
C. had not been polluted D. would not have been polluted
More and more attention has been drawn to the fact that many children are ________ in the countryside when their parents flood into the cities for jobs.
A. left off B. left aside C. left out D. left behind
--How did you find your visit to Qingdao, Joanna?
--________.
A. Oh, wonderful indeed B. I went there alone
C. First by train and then by ship D. A guide showed me the way
Mr. Black ________ for Shanghai in a few days. Do you know when the earliest plane ________ on Sunday?
A. leaves; takes off B. leaves; is taking off
C. is leaving; is taking off D. is leaving; takes off
To pay to see that movie seems foolish ________ you can see it on television for free.
A. before B. though C. when D. once
Experts believe that ________ warm and comfortable bath seems to be a perfect way for a patient to recover from ________ fear of losing control of himself.
A. a; the B. the; / C. a; / D. the; a
