A computer can only do ________ you have instructed it to do.
| A．how | B．after | C．what | D．when |
Have you found some information about that writer ______ you can use in your article.
| A．who | B．whom | C．what | D．which |
Like everyone else, we have our anxieties and sorrows. But ______ we are quite fortunate compared with some people.
| A．as a result | B．on the whole | C．in the meanwhile | D．as a matter of fact |
______ polar bear population is ______ sensitive topic for the Canadian government, which allows limited hunting.
| A．A; the | B．A; a | C．The; the | D．The; a |
—Dad forgot to mail the letter again.
— ______. Mum is always complaining about his declining memory.
| A．What a pity | B．Never do it again |
| C．I’m with you on that | D．That’s just typical |
The warmth of _____sweater will of course be determined by the sort of ___wool used.
| A．the, the | B．the ,/ | C．/, the | D．/,/ |