--- Shall we call on Frank tonight?
---We’d better not. He is said ________ a lecture.
| A．preparing | B．to be preparing | C．to have prepared | D．having prepared |
It sounds like something is wrong with the car’s engine. _______, we’d better take it to the garage immediately.
| A．Otherwise | B．If not | C．but for that | D．If so |
I have promised that my daughter _______ get a new electronic dictionary on her next birthday.
| A．should | B．must | C．shall | D．would |
Good news! The price of all those second-hand goods is ________ before.
| A．30% as lower as | B．30% lower than |
| C．lower 30% than | D．as 30% low as |
Students in English-speaking countries usually address their man teacher ‘sir”, but __________ their woman teacher “madam”.
| A．seldom they address | B．do they seldom address |
| C．seldom do they address | D．they seldom do address |
I am _______ about what I say because careless remarks are likely to hurt others’ feelings.
| A．absurd | B．concerned | C．guilty | D．cautious |