[ Grammar ]
Choose the best coordinating conjunction to combine the following pairs of sentences into compound sentences
I saw the crash about to happen. I couldn’t prevent it.
_
A. or
B. and
C. but
D. yet

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Modal Auxiliary Verbs › View
Form a question using a modal auxiliary verb to ask about the prohibition of using mobile phones in the school.
A. Will you use mobilephones in the school?
B. Should you use mobilephones in the school?
C. Do you have to use mobile phones in the school?
D. Can’t you use mobile phones in the school?