近年来,雾霾天气逐渐增多。对此,有网友调侃:“遛狗不见狗,狗绳提在手;见绳不见狗,狗叫我才走。……世界上最远的距离,是牵着你的手,却看不见你的脸。”这告诉我们( )
Mr. Black asks the kids ________ in the river, because it’s too dangerous.
You have to leave now_______ you can catch the early bus.
---Were you at home at 7:00 yesterday evening? I called you but no one was there. ---Sorry, we ___________ a movie at the theatre at that time.
Helen got up too late this morning, so she went to school _____ breakfast.
---It’s too cold today. ---Yes, why don’t you _______ your coat?