—Have you forgotten anything,sir? —Oh,I forgot to pay.You see,I'm terribly sick,but I ______ to.
So far, several ships have been reported missing ________ the coast of Bermuda.
I don't remember___________ to the airport that year.
A man does not know the difficulty of anything_________ he does it personally.
There is a _________ of 1000 dollars for the return
Isn't it very kind __________ your parents to do that for us? A. for B to C. about D. of