it is a good idea to take a first-aid kit ______ there is an accident.
A. in case
B. in the event of
C. in condition
D. but that
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The strength of the new material is ______ it can stand heavy loads at high temperature.
A. that
B. such that
C. what
D. so that
______ , the problem can be solved in only 2 hours with an electronic computer.
A. Complicated though it is
B. Though is it complicated
C. As it is complicated
D. Complicated as it is
He burned all the important documents ______ that they should fall into the enemy’s hands.
A. unless
B. so
C. lest
D. for fear
With the introduction of the electronic computer, there are no complicated problem ______ can be solved.
A. that
B. as
C. but
D. which