Look! This is ______ “U ” and that is _____ “S”.
—When are you going to tell the bad news to Jim?—______ he comes back.
—____________?—Orange, I think.
—We'll go to Zhengzhou University tomorrow. Where shall we meet?—Please wait ______ the bus stop near the bookshop.
We were deeply impressed by the schools ______ we had visited in this city.
—What should I do, doctor?—You should take more exercise ______ healthy.