According to the law, it is _____ get your driving license．
| A．not until you’re eighteen can you | B．until you’re eighteen that you can’t |
| C．not until you’re eighteen that you can | D．until you’re eighteen when you can’t |
In the traffic accident, his father came close to __________.
| A．be killed | B．killing | C．kill | D．being killed |
--- This returned Chinese scholar has become one of the top experts in this field.
--- Yes, I know him very well. He_________in Africa on wild animals for eight years.
| A．has worked | B．had worked |
| C．worked | D．has been working |
.They turned out more than 1,000 washing machines, most of which ________quality.
| A．is good | B．are good | C．is of high | D．are of high |
-- Did you visit the zoo?
--- No, we_______have visited it, but we spent too much time shopping.
| A．shouldn’t | B．can’t | C．could | D．must |
.The letter from his girlfriend he had been looking forward to _________yesterday.
| A．came | B．comes | C．coming | D．come |