My pen pal Andrew found it difficult ______ Chinese well
#50638
A
learning
B
learn
C
to learn
D
learned
推荐题目
Thank you for______ let me_______ on the trip today.
#49990
A
agree to；go
B
agreeing；going
C
agreeing to；go
D
agree；to go
— I feel tired and sleepy. — Why not stop _______?
#50035
A
to work
B
having a rest
C
to have a rest
D
to go on with your work