He ________ whether he will be able to win the tennis match. So he feels very nervous.
#59533
A
believes
B
thinks
C
doubts
D
hopes
推荐题目
It is important for us _____ our English. 
#54004
A
improving
B
improved
C
to improve
D
improves
Thanks to those brave firemen,the big fire was      soon.
#63581
A
put up
B
put away
C
put out
D
put on