Of all the subjects, I like ____ history best because it gives us ____ useful knowledge of things in the past.
| A．the; a | B．不填; a | C．a; the | D．a; 不填 |
—Hold the ladder for me!
—That’s______
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 |