—This physics problem is too difficult. Can you show me _____, Wang Li?—Sure.A.what to work it outB.how to work it outC.how to work out it
—Can you finish the work in an hour? —____________.
There are ________ books in the National Library.
It is going to be ________ tomorrow.
The small local school in Parkville ____________five years ago.
It’s polite ______ “Thank you” when you receive something from someone.