[ Grammar ]
The scientists ____________ the cause of the problem. (not/understand)
A. not under stand
B. do not understand
Select your answer:
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Grammar › ViewWhich are the uses of first conditional?
A. Possible and likely situations in the future
B. Possible and unlikely situations in the future
C. Impossible situations in past
D. Facts and general truths
Grammar › View
Select the adjective in the sentence.
Juan handled the breakable glasses very carefully.
A. glasses
B. very
C. carefully
D. breakable