问题
Do you know a spaceship flies at about nineteen kilometerssecond ?
A:the
B:a
C:/
D:an
B:a
C:/
D:an
正确答案是：
同类题型
______was your trip to Mount Emei, Alice?一 It was great! We-really had a good time there.
Mr John, would you please speak a little more ________ ?– Sorry ! I thought you could follow me.
did you have dinner last night? —In a restaurant.
It’s said that few people like the music.——That’s true. It sounds _________.