Steps must be taken _________ this kind of disaster will never happen again.

Steps must be taken _________ this kind of disaster will never happen again.

#31148

so that

even if

because

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Are you willing to live in an age _____ 4G technology will bring about an information revolution?

#31138

where

when

whose

which

You mustn’t drive _____ you have drunk.

#31337

although

before

unless

Reality is not the way you wish things to be, nor the way they appear to be, ____ the way they actually are.

#30968

but

and

You should report any incident, _______ minor it is.

#32156

whatever

whenever

however

wherever

You’d better do ___ I told you.

#80403

when

since

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