My pen pal Andrew found it difficult ______ Chinese well
#50638
A
learning
B
learn
C
to learn
D
learned
推荐题目
---Did you use to ____ a bus to school?---Yes .But now I am used to ____ a bike to school .
#49832
A
take , riding
B
taking , riding
C
taking , ride
D
taking . riding
They were made _______ the whole night. 
#50613
A
working
B
work
C
to work
D
worked
 —When are you going to get your ears ________?—I am going to have Ms Li ________ my ears this weekend.
#49143
A
pierced; pierce
B
pierced; pierced
C
piercing; to pierce
D
to pierce; pierced