---Miss Hu, I have trouble __________ grammar and __________ the text.
#55875
A
with; to understand
B
on; in understanding
C
with; understanding
D
on; to understand
推荐题目
Bill with his parents ________ China since two years ago.
#55434
A
have been in
B
have gone to
C
has been in
D
has been to
Not only you but also she ______ about the result at this time last year.
#52458
A
worries
B
was worrying
C
were worrying
D
had worried
-- What can trees do _________ us ?--- They can _________ harmful gases and produce oxygen .
#58609
A
helping , take in
B
to help , take in
C
helping , take out
D
to help , take care