This passage puzzled me so much that I stopped for a few seconds to _____.
A.make it up | B.make it out | C.make it for | D.make it over |
Why ____ you keep on troubling me with such questions while I''m busy ?
A.could | B.can | C.must | D.will |
I saw him leave the office an hour ago . He ____ at this time .
A.mustn''t be working | B.can''t be working |
C.can''t work | D.may not being working |
You don''t look well . You ____ have a fever .
A.might | B.can | C.shall | D.should |
He studied hard and ____ pass the examination .
A.could able to | B.could | C.was able to | D.ought |
The money was soon spent , so he ____ go hungry .
A.must | B.had to | C.might | D.should |