Don’t play any longer．It’s high time you ________ down to your study．

got

get

shall get

to get

What do you think the children ________ when we get home?

are doing

will do

have been doing

will be doing

The moment the 28th Olympic Games ________ open, the whole world cheered．

declared

have been declared

have declared

were declared

I couldn’t do my homework with all that noise ________．

going on

goes on

went on

to go on

________, he talks a lot about his favorite singers after class．

A quiet student as he may be

Quiet student as he may be

Be quiet student as he may

Quiet as he may be a student

It is pretty well understood ________ controls the flow of carbon dioxide in and out the atmosphere today．

that

when

what

how

________ and I’ll get the work finished．

Have one more hour

One more hour

Given one more hour

If I have one more hour

The millions of calculations needed, had they been done by hand, ________ all practical value by the time they were finished．

had lost

would lose

would have lost

should have lost

My elder sisters and brothers have moved away from home and are now ________ since they both have a good job．

lonely

alone

separate

independent

Fifty years ago, wealthy people liked hunting wild animals for fun ________ sightseeing．

rather than to go

other than going

more than going

than to go