_______ provides many hours of air for astronauts in space.
#17237
A
An air tank
B
A power pack
C
A helmet
D
A space sleeping bag
推荐题目
Tomorrow is Teachers’ Day. ____give our English teacher some flowers?
#17270
A
Let’s
B
Why don’t
C
How about
D
Why not
—I’m sorry for being late, Miss Green. —___________.
#17248
A
That's right
B
You are welcome
C
It doesn't matter
D
You should be sorry
________ is the most important festival in China.
#17287
A
Christmas
B
Spring Festival
C
Mid-autumn Day
D
National Day