__________ he sees people in trouble, he always lends them a hand

Mrs. Brown, I don’t think we can getthere on time by bike. — You mean it’s ___________ for usto take a taxi

It was announced that only when the fire was under control _ to returnto their homes.[ ]

Can’t you stay a little longer—It’s getting late. I really _____ go now. My daughter is home alone.

We should take effective measures to the infectious disease.