When it______air pollution, Beijing faces the three “C” s-----cars，coal and construction，which lead to Beijing's thick air pollution.
| A．refers to | B．comes to | C．happens to | D．speaks to |
Strong typhoons often hit this province，they form and come here between July and August every year．
| A．partly | B．normally | C．regularly | D．frequently |
It has been said that one can experience four seasons in the course of a single day in no country Britain．
| A．other than | B．more than | C．better than | D．rather than |
一Where did you first meet him?
——It was on the farm my father worked．
| A．that | B．where | C．which | D．in which |
When she realized I her, she quickly made a pose, smiling．
| A．photographed | B．had photographed |
| C．was photographing | D．have photographed |
yesterday，we went out for a wall
| A．As a fine day | B．It was a fine day |
| C．It being a fine day | D．For it was a fine day |