The Yangtze River, China’s longest, has been affected by a severe drought, ________ the lowest level of rainfall this year since 1961

There has been thick haze(雾霾)in Zhijiang recently.—We must drive our cars less because cars people drive, _____ pollution there will be.

______ which school was suitable for their son, the parents visited lots of different primary schools in the city.

I ______ at ten o’clock in the evening.

I don’t know Kate’s address. Do you know____ —Sorry, I don’t know, either.