Cars play an important role in modern life, but they ______ also cause many problems like air pollution.
#63554
A
should
B
can
C
must
D
will
推荐题目
---These grapes look really beautiful. ----They ______! See the price $3.99 a pound. Very expensive, aren’t they!
#63271
A
would
B
could
C
might
D
should
---There is somebody knocking at the door. Who________ it be?---I’m not sure. It ________ be a postman.
#75825
A
may; must
B
will; can
C
can; may
D
may; will
The chairman ________ hold office for five years according to the constitution.
#62206
A
might
B
could
C
need
D
shall