It is already well understood causes the global warming.
#30734
A
what
B
when
C
that
D
how
推荐题目
----How soon will you send the book to me? ----It will be two days _______ you receive my book.
#33944
A
before
B
that
C
since
D
when
straight on and you’ll see a church . You won’t miss it.
#31737
A
Go
B
Going
C
If you go
D
When going
The fire started on the second floor and it wasn't long ______ the whole building was burned down.
#30713
A
while
B
when
C
after
D
before
He was about to make a call to Tom _____ Tom patted me on the shoulder.
#31555
A
as
B
until
C
while
D
when