—________ will your father be back?—My father will be back in half an hour.
#43524
A
How long
B
How soon
C
How often
D
How far
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 Our plan is to plant 50 trees. And we have planted half of them    .
#35419
A
the other day
B
yet
C
so far
D
in the past
How much is the sweater ? 
#39036
A
What color is
B
How many is
C
How old
D
What’s the price is