He has some problems _________ his English learning.
#47554
A
on
B
for
C
with
D
in
推荐题目
Our Earth will be ________ if we go on cutting down millions of trees every year.
#46202
A
in great danger
B
danger
C
dangerously
D
out of danger
Her birthday is __________ July 6th. And my birthday is also ____________ that month.
#48310
A
in; on
B
in; at
C
On; at
D
on; in
It is important_______ you_______ out for a walk after supper.
#51063
A
of ; to go
B
to; to go
C
for; to go
D
for; going