If we throw away too much waste and can’t keep good ecosystem,we _________ our future.
| A．must have destroyed | B．could be destroying |
| C．may be destroying | D．must destroy |
Only if ___ the examinations, ___ get the gift promised by your father.
| A．you have passed; you will |
| B．have you passed; will you |
| C．you have passed; will you |
| D．have you passed; you will |
The plan ___, what is most important is to carry it out.
| A．having been disagreed |
| B．having been agreed |
| C．having been approve of |
| D．was approved of |
He tends to ___ his shoes before he goes out to work every day.
| A．polish |
| B．rub |
| C．tidy |
| D．wipe |
His pronunciation is not ___ but he can manage to make.
| A．fresh |
| B．accurate |
| C．clear |
| D．mistaken |
That was the first impression she ___ us when she first gave us an English lesson.
| A．left for |
| B．made to |
| C．left on |
| D．had on |