Excuse me, may I borrow your dictionary,Sandy—_______. But you have to return it this afternoon.

How do you feel your travel to Hainan—________，I enjoyed itvery much，although the weather of some days wasunpleasant.

Oh, Jack, _________________ you gave us!

Where do Dr. Kleitman and his assistant come from?—I’m not sure, but their English _____Australia.

Not until the early years of the 19th century ___ know what heat is. [ ]