---Mum, I’m leaving for Beijing tomorrow morning.--- Oh, good. But be sure to phone me ______

---Mum, I’m leaving for Beijing tomorrow morning.--- Oh, good. But be sure to phone me _______ you get to Beijing, please.

#58032

because

why

when

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—Hey, man. You can’t cross the street now. You have to wait ______ the traffic turn green.—Oh, sorry and thank you.

#56413

when

after

until

while

      it's difficult to make her dream come true, she never gives up.

#55197

Though

Unless

Because

—Do you like math?—Yes, it’s difficult ________ really interesting.

#55877

but

and

It’s raining outside! Put on your raincoat, ________ you’ll get wet.

#58341

and

but

though

 ---Look! Such heavy traffic!--- I doubt _________ or not I can get to school on time.

#56179

when

whether

why

共1556题