[ Grammar ]
A theory ——- only when a hypothesis ——- by consistent results from many observations or experiments.
A. may have been developed / was being supported
B. can be developed / has been supported
C. will be developed / was supported
D. has been developed / had been supported
E. had been developed / might have been supported
Select your answer:
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Other quiz:
Mixed General Quiz › ViewA: I scored 660 points at the TOEFL test!
B: ___! That’s amazing!
a. Wow
b. Aha
c. Woe
h omophones › View
It isn’t polite to ___________.
A. Stare
B. Stair
How to use : Read the question carefully, then select one of the answers button.