Things have changed quickly over the past decade and life in the country is much better than ___used to be．
| A．that | B．what |
| C．it | D．one |
—I missed the first part of the film. It was really a pity.
—You __________ home half an hour earlier.
| A．should go | B．must have gone |
| C．should leave | D．should have left |
Please __________ the numbers and I’m sure they will __________ more than 1, 000.
| A．add up; add to | B．add up; add up |
| C．add up; add up to | D．add to; add up |
He made a mistake, but finally he solved the problem __________ it got worse.
| A．until | B．before | C．when | D．as |
---- So he wants to sell the house and move to New York.
----_________.
| A．I agree | B．No problem | C．What fun | D．Exactly |
Mr. Lee made ______ a rule that we must come to school on time.
| A．that | B．this | C．it | D．which |