In Chinese, “tu” means rude and “hao” means rich. So the word “tuhao” has __________ been referred to rich people who throw their weight around in China’s rural areas.
| A．regularly | B．frequently |
| C．traditionally | D．relatively |
Not until World War II ______ to use new chemical techniques to purify penicillin.
| A．they managed | B．that they managed |
| C．did they manage | D．they didn’t manage |
--- What did the manager say at yesterday’s meeting?
--- So you______ to him carefully.
| A．won’t listen | B．weren’t listening |
| C．hadn’t listened | D．haven’t listened |
--- Did Jack come back early last night?
--- Yes. It was not yet eight o’clock ______ he arrived home.
| A．before | B．until | C．when | D．af ter |
In some countries citizens are ______ to vote, and if they don’t they get fined.
| A．demanded | B．suggested | C．prevented | D．required |
We’ve been looking at houses but haven’t found ______ we like yet.
| A．them | B．ones | C．it | D．one |