Read the passage and correct the mistakes, ______.
A.if not | B.if any | C.if ever | D.if never |
At times, worrying is a normal, ________ response to a difficult event or situation --- a loved one being injured in an accident, for example.
A.effective | B.individual | C.inevitable | D.unfavorable |
This cake is very sweet. You _____ a lot of sugar in it.
A.should put | B.could have put | C.might put | D.must have put |
He paid for a seat, when he ______ have entered free.
A.could | B.would | C.must | D.need |
— The woman biologist stayed in Africa studying wild animals for 13 years before she returned.
— Oh, dear ! She ______ a lot of difficulties !
A.may go through | B.might go through |
C.ought to have gone through | D.must have gone through |
Helen ______ go on the trip with us, but she isn’t quite sure yet.
A.shall | B.must | C.may | D.can |