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If H2 burn in O2, we can get _____.
#29282
A
H2
B
H2O
C
O2
D
H2O2
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—What would you like to drink, girls?  —          .
#27965
A
Two cup of coffee
B
Two cups of coffees
C
Two cups of coffee
D
Two cup of coffees.
—Do you have a knife?—Yes, I do. I have a big     .
#29463
A
knife
B
ones
C
/
D
one
Fall and _____have the same meaning in English.
#29352
A
eraser
B
lift
C
autumn
D
soccer
 The boy is fourteen ________. 
#28353
A
year
B
yearsold
C
yearold
D
Old
—Could you tell me something about the boy who helped you just now?—Sorry, I know nothing about him. We are __________ .
#29415
A
friends
B
neighbors
C
classmates
D
strangers