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A. Check her eyes. B. Read a book. C. Have a rest.

A. could leave

B. must have left

C. might leave

D. should have left

A. why B. how C. when D. what

A. To discover B. Discovering C. Discovered D. Having been discovered

A. that; differ B. which; differ in C. in that; differ D. in which; differ in

A. which B. when C. where D. that

【題目】Even if accepting the job means to New York by myself without any help, I won't regret ______ such a decision.
A.traveling; to make
B.to travel; to make
C.traveling; making
D.to travel; making

【題目】Terry and his team members were the firsthow the disease spreads from animals to humans.
A.shown
B.showing
C.to show
D.show

【題目】at the top of the mountain, we caught sight of a river over 250 meters broad.
A.Stood; measuring
B.Standing; measured
C.Standing; measuring
D.Stood; measure

A. that B. why C. how D. what