A hard-working man become a great scientist, but a great scientist be a hard-working man.
#74334
A
can’t; can
B
may not; can
C
can’t; must
D
may not; must
推荐题目
----- Where is Jack?.-----He______ be in the reading room .I saw him just now.
#75041
A
need
B
can
C
must
D
would
I didn’t know Headmaster Weng was away for Beijing. I to his office yesterday.
#63308
A
mustn’t have gone
B
needn’t have gone
C
wouldn’t have gone
D
couldn’t have gone
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
You be hungry after the long walk. Help yourself to some cakes.
#75486
A
should
B
must
C
need to
D
ought to