16.I haven't telephoned her for______

16.I haven't telephoned her for______
A.two weeks ago B.two weeks C.last month D.she left
17.President Bush ________the hero of our country since last year.
A.visit B.have visited C.has cisited D.has been become
18.YangLiwei ______the hero of our country since lst year.
A.became B.have became C.has become D.has been become
19.He is going as soon as he ________dinner
A.has B.has had C.have had D.had
20.It's three weeks since we ______him
A.see B.saw C.have been seen D.have seen
21.I bought the wallet here_______.
A.for a week B.since a week ago C.a week ago D.a week
22.The book is worth_______
A.to read B.reading C.to be read D.to reading