I’m impressed with his determination. When he had a problem to solve, he _____ work at it until he found an answer.
#63610
A
would
B
might
C
must
D
should
推荐题目
—These grapes look really beautiful. —They _______! See the price $3.99 a pound. Very expensive, aren’t they!
#62527
A
might
B
could
C
would
D
should
—Have you checked the engine? —Yes, I did twice; there ______ be anything wrong with the car.
#62870
A
won’t
B
mustn’t
C
needn’t
D
shouldn’t
-- Can I tell Peter about the news?-- No, I don’t want anyone else to know it. You ________ keep it to yourself.
#78287
A
must
B
need
C
can
D
may
Today’s work ____ today. Never leave it till tomorrow.
#78180
A
must do
B
must be done.
C
may be done
D
may do
In ancient times, dogs were mainly ______helping people hunt( 打猎) .Now they are more useful-they can help the blinds, search for the bad eggs,...
#77872
A
bad for
B
used to
C
used for
D
good at