We regret you that the goods you ordered are out of stock.
A.to tell
B.telling
C.having told
D.to have told
A. make
B. have
C. avail
D. advantage
A.With
B.Since
C.While
D.To
A.for
B.on
C.to
D.at
A.Very
B.Much
C.Many
D.Great
A.with
B.for
C.on
D.under
If we ______sooner, we might have got there.
A.started
B.had started
C.would have started
D.start
It is necessary that we ______ have a good command of English at college.
A.must
B.have to
C.should
D.ought to