--- What ________ is a basketball?
---- It is ________.
| A．shape; round | B．height; oval |
| C．weight; heart-shaped | D．shape; square |
There were few doctors, _____ he had to work very hard _____ his own.
| A．and; in | B．because; at | C．so; on | D．when; for |
Many people were dying ________ they didn’t get to hospital quickly enough.
| A．but | B．so | C．and | D．because |
________ it is over, everyone helps wash the dishes.
| A．After | B．Before | C．When | D．As soon as |
You __________ there in ten minutes.
| A．get | B．will get | C．got | D．have got |
There are __________ stars in space.
| A．one million | B．two millions | C．three millions of | D．millions of |