下列各组字母中,全部是元音字母的是_____.A. a, e, r B. i, u, e C. o, n, u
– ______ is your friend ? – Maria.
This is ______ banana and that is _______ orange.
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