24．—-It’s very cloudy and freezing cold． —– Yes, I’ m afraid it________be snowing tonight

The bag was too heavy for me to carry, I pulled it into my room.

Some college students are seen doing_____ work they can find to support themselves.

Do you mind if I closethe window— ________ We shouldlet in more fresh air

According to a report, cigarette smoking ______ in all indoor public places in our province soon.