When the passengers’ (乘客) families heard the bad news, they were _____ to stay calm.
| A．too sad | B．sad enough | C．enough sad | D．so sad |
Which of the following signs means ‘Don’t drop litter’?
—— It was great fun to be a volunteer, wasn't it?
—— Yes. That'sexperience hard to forget.
| A．a； an | B．/； an | C．/； the | D．a； the |
—Would you please tell me________this DV？
—Yes．It’s very easy．
| A．where to use |
| B．how to use |
| C．when to use |
| D．what to use |
—Would you like to tell me________？
—Sure．Practice makes perfect．
| A．how can I study English well |
| B．why do you learn English well |
| C．how I can study English well |
| D．why I learn English well |