Where’s that report?—I brought it to you ________ you were in Mr.Black’s office yesterday

mmer Palace is really beautiful In fact, Idoubt whether China has _________ park

You should know that the part you are _____ in this activity is very important.

It is uncertain __ side effect the medicine will bring about, although about two thousand patients have taken it

Your sweater looks nice, is it made of wool? —Yes, and it’s made ______ Shanghai.