--Don’t smoke here. Look at the sign please.
–Sorry, I _________it.
A. don’t notice B. can’t notice C. won’t noticing D. didn’t notice
He ________a trip in China, but now he _________on a journey.
A. used to take; is used to go B. used to take; is used to going
C. is used to taking; used to go D. is used to take; used to going
I would like to join the school volunteer project, and I often imagine _______.
A. what I should do it B. what should I do
C. what I should do D. how should I do
He _______ you an e-mail as soon as he ________ a plan.
A. sends; comes up with B. sends; will come up with
C. will send; will come up with D. will send; comes up with
Aron ______ water five days later.
A. ran outB. used outC. ran out ofD. used out of
This is______ difficult problem that few students can work it out.
A. so B. so a C. such D. such a
