Yunnan ______from serious drought since 2009, so it’s our duty to save water every day.
| A．suffered | B．has been suffering | C．has been suffered | D．have been suffering |
Over the past decades, sea ice_______ in the Arctic as a result of global warming.
| A．had decreased | B．decreased |
| C．has been decreasing | D．is decreasing |
Our teacher suggests English every day to improve our spoken English.
| A．practising to speak | B．to practise to speak |
| C．to practise speaking | D．practising speaking |
— How about Thursday morning? Say, 10 o’clock?
— OK. I’ll be expecting you then.
| A．Is that right? | B．That’s settled. |
| C．How are you doing? | D．No way! |
His sister left home in 1998, and_______ since.
| A．had not been heard of | B．has not been heard of |
| C．had not heard of | D．has not heard of |
— I went to see a film yesterday.
— Oh, did you? .
| A．So I did | B．I did so | C．So do I | D．So did I |