I don't understand this point of grammar.I wish I ______ it better.
A. understand
B. understood
C. would understand
D. had understood
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Let me help you, ______
A. won't yon
B. will you
C. shall I
D. shan't I
He felt it strange ______ she would be late for class.
A. that
B. which
C. when
D. why
Don't forget to turn off the heating before ______ the house.
A. 1cave
B. left
C. to lcave
D. leaving
When he ______, tell him that I've already left.
A. has come
B. came
C. comes
D. will come