difficult questions the teacher is asking! Only a few students can answer them!

Don’t you think the weather is becoming hotter and hotter year by year—Yes. I think it’s one of __________ problems in the world these years.

getting dark, Tim. Mummust be expecting me home.—Don’t worry. I’ll _____ in my car.

The meeting lasted till late ______

He dived_______into the river to save the girl and I was ______ moved by his deed