We’ll visit Expo 2010 Shanghai this Sunday______

We’ll visit Expo 2010 Shanghai this Sunday_______ it rains or it’s very hot．

#58511

since

unless

until

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Some physics problems in this book are _________difficult for the students _________work out.

#55219

so; that

not; but

such; that

too; to

 --- Would you like to come to the dinner party on Saturday? --- I’d love to, ___________ I’ll be out of town at the weekend.

#57205

because

and

but

Leo is my good friend. He likes tennis         ping-pong.

#58047

but

and

This dress still looks beautiful on her _____ it is last year’s style.

#56876

because

though

since

You will achieve nothing _       you work hard.

#56195

unless

when

That

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