My funny joke made my grandparents ___ happy.
无论处于何处都须大写的字母是_________.
– Is this a bus ?– _______. It’s a car.
Stephen Hawking is from _________.A. the U.S.A. B. Japan C. England D. Canada
中华人民共和国的英文简写是 ________。
----Why not have some water? --- ________________.