_____earth scientists understand how and why earthquakes happen, forecasts are usually inaccurate.
#32029
A
As
B
While
C
Because
D
If
推荐题目
Staff are allowed to take a ten-minute break every two hours to relax, use the bathroom or do ___________ else is necessary.
#32537
A
something
B
anything
C
whatever
D
what
You may use the room as you like ________ you clean it up afterwards.
#32261
A
as far as
B
so long as
C
in case
D
even if
He decided not to attend her birthday party ______ he had been invited..
#32589
A
even if
B
because
C
as if
D
as though
She says that she'll have to close the shop ________ business improves.
#31017
A
if
B
unless
C
after
D
when
(2013·河北高三教学质量检测)Many people tried to leave the country, ________ there was much violence and a serious shortage of food supply.
#30432
A
where
B
which
C
that
D
what