—I'll miss you，dear.
—It ________ long before we meet again，Mom. It's only one month away from Christmas.

_____ many times, but he still doesn’t know how to operate the machine properly.

We can hardly believe his excuse for his late show _______ his car broke down halfway.

I couldn’t believe it, but ______ in black and white, signed by the bank manager.

There is no doubt      the earth is becoming warmer.

I was about to go to bed _____ one of my old classmates made a call to me.

-- We are going to hold a sports meeting tomorrow.-- __________ it rains?

There is no doubt      the earth is becoming warmer.

----- Do you know when Tonny came back last night?
----- Yes. It was not yet nine o’clock _____ he came back home.

______ an hour in the morning and you will be looking for it during the rest of the day.