He has been collecting shells ______ three and a half years.
A. since B. for C. when D. at
It’s polite to ______.
A. speak loudly in public
B. smoke on the bus
C. drop litter everywhere
D. say “Thank you” when someone helps you
Practice a lot, and you’ll ______ learn English well.
A. can B. are able to C. could D. be able to
I think it’s ______ for him to finish the work.
A. enough easy B. easy enough
C. enough easily D. easily enough
There are many other ways to learn English ______ singing English songs.
A. besideB. except C. besides D. over
I’ll try to ______ who did it.
A. find B. look for C. see D. find out
