A number of tests have been conducted to _______ that these drugs have no side effects.
| A．find out | B．look for |
| C．make sure | D．work out |
A terrible thought Mr. Smith when he was leaving for work: what if an accident happened while his son was alone at home?
| A．insured | B．freed | C．attacked | D．struck |
Jack was late for nearly two hours this morning but he gave such important reasons he was excused.
| A．why | B．that | C．when | D．how |
Although this kind of vegetable tastes , yet it is rich in nutrition and good for your health.
| A．bitter | B．bitterly |
| C．delicious | D．deliciously |
The school board has teachers to spare no effort to help the students who have fallen behind in studies.
| A．looked into | B．turned into |
| C．called for | D．cared for |
In this new city, we everyone will meet the when we don’t know what to do.
| A．occasion | B．statement | C．place | D．information |