－I always take care when doing papers on the computer.
－You meant it! One cannot be too ____________ working on it.
| A．nervous | B．sure | C．anxious | D．careless |
You can’t imagine ______ when they heard the news ______ their team had won.
| A．how excited they were; that | B．how exciting they were; which |
| C．how they were excited; that | D．how they were exciting; which |
I would rather you ______ in my school, Mom.
| A．not work | B．not worked | C．didn’t work | D．not working |
How can you know whether you will succeed ______ you never try?
| A．in case | B．when | C．unless | D．even if |
It was the fifth time that he ______ to such a meeting.
| A．have been invited | B．was invited | C．had invited | D．had been invited |
The villagers, ______ damaged by the flood, were given help by the International Red Cross.
| A．all whose houses | B．all their houses | C．all of whose houses | D．their all houses |