If it were not for the fact that he ________ ill ，he would finish it.
| A．is | B．be | C．were | D．am |
It seems the benefits are so obvious that we hope yousupport our side’s point of view.
| A．will can | B．need to | C．will be able to | D．may |
Although some boys in his situationto crime to get money for food and clothing, Louis never did.
| A．might have turned | B．might be turning |
| C．had turned | D．will turned |
There’s a fascinating driveout for tourists.
| A．to mark | B．to be marked | C．marking | D．marked |
His music is popular today as it ever was.
| A．very | B．as | C．such | D．so |
Cloning plants is straightforward cloning animals is very complicated .
| A．so that | B．although | C．while | D．as if |