I found _________difficult to work out the problem.
A it’s B this C that D it
Wang Fan , could you give us ______ on how to learn English _______?\
A. some advices, good
B. any advices , well
C. some advice , well
Everyone knows that a desk is made __ wood and paper is made__ wood too.
A. of , of B. of , from C. from, of
I’ m sure I can make myself _____, because I have improved my English greatly.
A. understand B. understanding C. Understood
The river has become much ______ than before because of the waste water.
A. dirty B. dirtier C. Dirtiest
----Do you know how the accident _______?
----Sorry, I don’t know.
A. come out
B. come into being
C. come about