158. It is said in the book that Thomas Edison _____ the world leading inventor for about sixty years.
| A．would be | B．has been | C．was | D．had been |
The key got ________in the lock and we had to ask a repairman to help.
| A．to be stuck |
| B．stick |
| C．stuck |
| D．sticking |
A new road is ________here.They hope to finish it next month.
| A．under way |
| B．under control |
| C．under repair |
| D．under construction |
The driver shall be fined if he drives without a(n)________．
| A．permission |
| B．permit |
| C．allowance |
| D．admittance |
I'll come to pay a visit to you if ________ this weekend.
| A．you're convenient |
| B．it is convenient for you |
| C．you feel convenient |
| D．it is convenient with you |
Tom should not be sent to carry out the task________，he hasn't had enough experience.
| A．for a start |
| B．by the way |
| C．on the other hand |
| D．sooner or later |