A good listener takes part in the conversation,offering ideas and ___ questions to keep the talk flowing.

We must ________ every chance we have to improve our communicating ability.

The new smart robot by Sony, with a camera “eye” on its head, can __________ colors and human faces.

The examination results suggested that I    in poor health,so the doctor suggested that I      more exercises to improve it.

I don’t think it      to stay up late in the night and sleep until midday the next day.

The human mind can        many tasks that other animals cannot, like using language and judging what other people are thinking．

-- I have got a headache.
-- No wonder. You_________ on the math exercises too long.

Canada is a country ________ many different nationalities as well as one with foreign immigrants __________ the majority of its population.

—I'm sure Andrew will win the first prize in the final.
—I think so.He ________ for it for months.

—How did you get in touch with Mrs.Green?
—Well，it seems to me that you've forgotten ________ me her telephone number the other day.