_______ 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
—Where have you been these days?—I have been to Bei Daihe with a friend .
#17283
A
in Chinese
B
of Japan
C
of American’s
D
from Canada
--________ do you have PE? –Every Monday, Wednesday and Friday.
#16863
A
How often
B
How long
C
How many times
D
What time
It’s nice _______ you _______ me with my lessons.
#16757
A
for, helping
B
for, to help
C
of, to help
D
of, helping
In English-speaking countries, ____is unlucky number while ____is unlucky number in China.
#17087
A
14;4
B
13;4
C
11;4
D
13;0
---Could you be so kind as to close the door? ---______.
#16997
A
With pleasure
B
Go ahead
C
Yes, please
D
That’s OK