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777.I haven't got the reference book yet,but I'll have a test on the subject next month.
Don't worry.You ______ have it by Friday.
A.could
B.shall
C.must
D.may
778.I have told you the truth._______I keep repeating it?
A.Must
B.Can
C.May
D.Will
n. 参考，出处，参照
n. 推荐人，推荐函<
