It is so difficult a problem that _____ student in this class _____ work it out.
| A．any, can't | B．no, can | C．every, can | D．no, can't |
— If it tomorrow, we’ll stay at home.
— It would be boring.
| A．rain | B．rains | C．will rain | D．is raining |
It is bad for a man to smoke in public places where smoking is not allowed.
| A．method | B．impression | C．behavior | D．attitude |
At last the mother had no choice but ___________ her son herself, though she was quite busy．
| A．to pick up | B．pick up | C．picking up | D．picked up |
As a student in Senior Three, I must work hard． ___________, I should take exercise to strengthen my body．
| A．Otherwise | B．Meanwhile | C．Therefore | D．Thus |
The book didn’t _______to children probably because she employed too many scientific terms．
| A．apply | B．appeal | C．intend | D．adapt |