What we all know is that the old scientist, _______ life was hard in the past, still works very hard in his eighties.
| A．for whom | B．for him |
| C．for whose | D．for which |
I think I was at school, ______I was staying with a friend during the vacation when I heard the news.
| A．even so | B．and then | C．so that | D．or else |
There were two boys in the lab, ________ did the experiment successfully.
| A．the clever of whom | B．the cleverer or whom |
| C．the clever of them | D．the more clever of them |
After the new technique was introduced the factory produced________cars in 1994 as the year before.
| A．as twice many | B．as many twice | C．twice as many | D．twice as |
I am in _______charge of the class which was in __________charge of my wife.
| A．不填；the | B．不填；不填 | C．the; 不填 | D．the; the |
I didn’t like the story, _______, it’s too long, also it was written by a writer I don’t know
| A．for one thing | B．for a thing | C．although | D．in one hand |