____ caused the accident is still a complete mystery.
#4984
A
What
B
That
C
How
D
Where
推荐题目
We shouldn’t spent our money testing so many people, most of _____are healthy
#5034
A
that
B
which
C
what
D
whom
____________ we can’t get seems better than ____________ we have.
#4989
A
What; what
B
What; that
C
That; that
D
That; what
Generally speaking, the music of one country is quite a lot in ______ with its culture.
#4740
A
use
B
common
C
order
D
same
The meeting was expected to start at 9 o'clock but the manager didn't turn up ______ twenty minutes later.
#5014
A
before
B
until
C
after
D
since