__________，the gathering crowd burst into applause.
| A．On entering the hall |
| B．When he entered the hall |
| C．The speaker took his place |
| D．No sooner had the speaker entered |
The new law has come into________；surely it will have________on industry of the country.
| A．affect；an effect |
| B．effect；affect |
| C．effect；an effect |
| D．an effect；an effect |
“They are required to keep a twometer________from everyone else during the quarantine (隔离)period，” experts say.
| A．length |
| B．width |
| C．distance |
| D．space |
You are driving me mad，Jack! My patience is ________.
| A．using up |
| B．running out of |
| C．getting out |
| D．running out |
－Jim lied to his teacher.
－________As far as I know，he is honest.
| A．Go on. |
| B．How come? |
| C．Why not? |
| D．Not to worry. |
The town has______population of about 10,000 and 80% of________population are farmers.
| A．a；the |
| B．a；a |
| C．the；the |
| D．the；a |