语法词汇练习 语法大全 语法详解 英语听力 
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
下一题
推荐题目
It’s difficult-------- me to learn English well.
#76982
A
of
B
with
C
for
D
as
Nanjing isn’t so large __________ Shanghai, however, it’s the second __________ city in East China.
#78029
A
like; largest
B
as; largest
C
like; large
D
as; large
“Where’s my book? I can’t find it”.“It _______ on your desk.”
#76205
A
may be
B
maybe
C
maybe is
D
may is
I want to open the door, but it _____ open.
#62889
A
couldn’t
B
won’t
C
wouldn’t
D
mustn’t
(2013·青岛二模)John ________ yet, or he would have telephoned me.
#62411
A
mustn't have arrived
B
shouldn't have arrived
C
needn't have arrived
D
can't have arrived