Having weekly meals together _______ to be helpful in bringing the family together.
| A．found out | B．turned out | C．figured out | D．worked out |
Evdence has been found through years of study______children’s early sleeping problem likely to continue when they grow up.
| A．why | B．how | C．whether | D．that |
The headmaster will not permit the change in the course,nor______it a thought.
| A．does he even given | B．he even gives |
| C．will he even give | D．he will even given |
It was 80 years before Christopher Columbus crossed the Atlantic______Zheng sailed to East Africa
| A．when | B．that | C．after | D．since |
Before you quit your job, ______how your family would feel about your decision.
| A．consider | B．considering |
| C．to consider | D．considered |
—Coach,can I continue with the training?
-Sorry,you can not -___you have not recovered from the knee injuyy.
| A．unitil | B．before | C．since | D．unless |