The old scientist took up walking as a regular form of exercise, which, of course, is of great to his heath.
A.benefit | B.favor |
C.sense | D.relationship |
— Beijing or Shanghai? What did you mean?
— We were talking about _______ go to college.
A.how to | B.where to | C.whether to | D.when to |
When he was a boy, he used to go there and watched _______.
A.repairing bicycles | B.to repair bicycles |
C.bicycles being repaired | D.bicycles to be repaired |
Robert is said______ abroad, but I do not know what country he studied in.
A.to have studied | B.to study | C.to be studying | D.to have been studying |
Beijing was attacked by such a terrible sandstorm ______few citizens had ever experienced before.
A.and it was | B.as | C.that | D.which |
He______ on this paper for ten minutes but he______only about sixty words.
A.will have worked, has written | B.worked, has written |
C.has been working, has written | D.will be working, works |