It has been ______ that the weight of all the insects destroyed by spiders in Britain in o
A.calculated
B.estimated
C.measured
D.valued
A.calculated
B.estimated
C.measured
D.valued
This is the second time that your mother has been to London, ______?
A.isn't she
B.isn't it
C.has she
D.hasn't she
A.He has a sore elbow.
B.The tennis court has not been available.
C.He doesn't have time to play.
D.He has been on vacation.
The new product has been a commercial success in the USA.
A.Right
B.Wrong
C.Doesn't say
A.has been seeking
B.is seeking for
C.sought
D.sought for
A.It hasn't been bought by the librarian.
B.It has been taken by a student.
C.It has been lent out.
D.It has been placed on reserve.
A.He has been ill.
B.He hasn't yet found a topic.
C.He was busy studying for the exam.
D.He didn't know the deadline.
A.The man needs to sec a doctor for some counseling.
B.The man has been frightened by the UFO.
C.The man shouldn't go to the party.
D.The man has been hurt by the beast and needs to see a doctor.
听力原文:Why can't the boy find the book?
(25)
A.It hasn't been bought by the librarian.
B.It has been taken by a student.
C.It has been lent out.
D.It has been placed on reserve.
A.can't, went to
B.can't, has gone to
C.mustn't, has been to
D.mustn't, went to
A.has considered
B.has been considering
C.had considered
D.considered
There has been a great increase in retail sales, ________?
A) does there
B) isn’t there
C) hasn’t there
D) isn’t it