—Jenny took the 8:00 bus to Shanghai this morning.—Really? She ______ the 9:00 train. It's much more comfortable and safer to travel by train.
_______ the days going on, the weather is becoming hotter and hotter.
We tried to ______ his doubts and let him tell the truth.
Advertisements are a good __________ sell products or services.
Violence (暴力) computer games may have a bad ____________ on children.
Mary is often heard ________ playing piano in the next room in the evening.