You don’t know how difficult the job is, you have done it yourself.

You don’t know how difficult the job is,           you have done it yourself.

#55556

unless

since

because

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It’s hot today, ______we want to go swimming in the river.

#55428

though

but

Eddie was sleeping _______ Millie was reading a magazine.

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until

while

before

after

Although he is very old, _________ he works very hard.

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and

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I don’t have to live in the hotel ____ my friend provides a very good place for me.

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Some of the students are nearsighted______they spend too much time watching TV or playing online games.

#55869

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