If H2 burn in O2, we can get _____.
#29282
A
H2
B
H2O
C
O2
D
H2O2
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I like ________, but my brother likes___________.
#29726
A
broccoli, salad
B
apple, banana
C
oranges, broccolis
D
French fries, salads
 Could you give me             ?
#29327
A
some advice
B
an advice
C
some advices
D
many advice