Jack     his pet dog every day. The dog must feel sad when he’s alone all day long.
#75030
A
should walking
B
should to walk
C
had better walk
D
had better to walk
推荐题目
Tom would rather _________than _________. 
#77217
A
stay at home , go out
B
to stay at home , to go out
C
to stay at home , go out
D
stay at home , to go out
My new pen ______. Who ______ have taken it?
#62850
A
has been disappeared; can
B
has disappeared; could
C
is missing; should
D
has been lost; may