1 . I get up early _______ I won’t be late.

A．as though

B．so that

C．such that

D．now that

2 . New ________ the facility is, it would make possible a much stronger signal that would cover wider residential areas.

A．although

B．as

C．despite

D．while

3 . It is 10 years ________ these important environmental problems were addressed, which benefited the entire world.

A．since

B．after

C．before

D．when

4 . ______ you are talented, you cannot do everything alone; you must learn to cooperate with others.

A．Unless

B．Until

C．So long as

D．Even if

5 . _______ you form the habit of taking regular exercise and stick to it, you will be much healthier.

A．As long as

B．In case

C．As if

D．Even if

6 . Jack’s mother was so tired. She fell asleep        she lay down on the bed.

A．until

B．unless

C．as soon as

D．while

7 . I often cycle through the countryside         it’s good for my health.

A．unless

B．because

C．although

D．while

8 . ________the US stops contributing to the WH, it would be a blow to the global health body, but definitely not the end of the world.

A．Before

B．Since

C．If

9 . The observation period is 14 days after the last unprotected contact with a case. ________close contacts show no symptom within this period, they could be discharged from medical observation.

A．Lest

B．If

C．Unless

10 . Mother’s Day, the second Sunday in May, is usually a good day for flower farmers and florists around the world ________flowers sell best on this traditional Western holiday.

A．if

B．because

C．when