If I remember correctly， _______was ten years ago that your brother went to Canada.
#84778
A
this
B
which
C
as
D
it
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It is the protection for the trees___________ really matters, rather than how many trees are planted.
#85499
A
what
B
that
C
不填
D
which
--So you know Catherine?---Yes, it was last week_____ she came to visit my roommate Jane.
#85015
A
that
B
when
C
since
D
before
It was ______ the second-hand car that the mechanic spent the whole afternoon in the factory.
#85287
A
in repair
B
repaired
C
repairing
D
to repair
It was not until she got home ___ Jennifer realized she had lost her keys.
#85454
A
when
B
that
C
where
D
before