It’s usually warm in my hometown in March, but it _____ be rather cold sometimes.
A. must B. can C. should D. would
I have ________ all my papers but I still can’t find my notes.
A. looked through B. looked for
C. looked after D. looked out
— Now that you like computers very much, isn’t that a good idea to get a ______?
— Well, I’d like to, but I can’t afford such an expensive computer at present.
A. one B. them C. it D. that
I have many friends, _______ some are businessmen.
A. of them B. from which C. of who D. of whom
The car has been well maintained and is ________ excellent condition.
A. in B. under C. on D. with
— Why was Professor Johnson unhappy those days?
— Can’t you see it clearly? The only reason was that the theory he stuck to________ wrong.
A. proving B. being proved
C. proved D. was proved
