It was strange that he _____ have uttered such rude remarks on that occasion.

Jack _______ the test for further study in the collegeLet’s have a party to congratulate him

______ is my ID card I can’t find it.–It’s under the bed.

The river is very deep. My mother warns me _________ in it.

Scientists are convinced ___________ the positive effect of laughter ___________ physical and mental health.