It’s necessary        us        English well.
#49684
A
for , to learn
B
for , learning
C
of , learning
D
of , to learn
推荐题目
We must do everything what we can _______ water and paper.
#48856
A
save
B
saving
C
to save
D
saved
When I returned .I saw him ____ on the bed.
#50772
A
laying
B
lying
C
lay
D
lie
–Which hair band do you like best, madam?–I can’t decide now. I really don’t know _________.
#49336
A
to choose which one
B
choose which one
C
which one to choose
D
which one I should choose it
You don't know the way. Why ______ the policeman for help?
#49604
A
don't ask
B
no ask
C
not ask
D
not to ask