– _________ do you go to your school library?– Three times a month
#58110
A
How long
B
How often
C
How much
D
When
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—What’s the matter with you? You look so worried.-- I don’t know ___________ the problem.
#57173
A
what to solve
B
how to solve
C
to solve what
D
how can I
--I can’t solve the math problem because it is too difficult. What should I do? -- _________ ask the teacher for help?
#55905
A
How about
B
What about
C
Why don’t you
D
Why not you
---We can't be successful _____ we keep on working hard. ---I agree with you.
#57280
A
if
B
because
C
unless
D
until