—I've just been to my first language class.
—Oh，really？________.Which language are you studying?
| A．So do I | B．So have I |
| C．So I do | D．So I have |
Fighting an artificial greenhouse effect seems to be the greatest of environmental challenges, ________？
| A．isn't it | B．does it |
| C．doesn't it | D．is it |
A series of stimulus policies and supportive measures taken by the government ________ to promote change in the economic environment in this area.
| A．are expecting | B．are expected |
| C．is expecting | D．is expected |
Only when he returned ________ that the war had ended and the army had come back.
| A．we tell | B．we told |
| C．did we tell | D．were we told |
________， his idea was accepted by all the people at the meeting.
| A．Strange as might it sound |
| B．As it might sound strange |
| C．As strange it might sound |
| D．Strange as it might sound |
—________ no ad during TV plays.
—Great move! I cannot tolerate those annoying ads appearing every several minutes.
| A．There is said to have | B．It is said to have |
| C．There is said to be | D．It is said to be |