My father returned at 10 o’clock ______ of June 15.
#47846
A
in the night
B
by the night
C
on the night
D
at night
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My sister has learnt English        .
#47780
A
for twelve years ago
B
since she was four
C
twelve years ago
D
at the age of four
When you go _________ the street, you must be careful.
#47521
A
crossing
B
cross
C
across
D
pass