Computers can do a lot of things nowadays, but _____ more still need to be done by man.
| A．a large amount of | B．a great deal |
| C．a good many of | D．a great many |
We were going out for a Christmas meal together ____ the accident happened.
| A．unless | B．until | C．while | D．when |
Jack had to call a taxi because the box was _______ heavy to carry all the way home.
| A．too much | B．so much | C．far too | D．so far |
He will work in a big company after he _____ the university.
| A．graduates from | B．graduate from | C．will graduate from | D．graduation from |
He _____ his work with animals.
| A．is famous as | B．is famous for | C．is well known as | D．is well known to |
It is the first time I ____ to visit the Great Wall.
| A．came | B．come | C．have come | D．had come |