Mum, I haven’t seen Dad for four days.— Oh, he’s busy with a new project. You know, his work ________.

We’ll have a picnic if it ______ tomorrow.

I can hardly believe my eyes. Is that you, Joy—Yes. It has been almost ten years we were together.

The plane is due to take off at 7：50 from the airport—________ we fail to arrive there on time—Try to take another flight then

Miss Gao is very strict her students their studies.