—— Why? Tom, your shirt is so dirty!
—— Mum, I ＿＿＿＿＿ my storeroom downstairs。
| A．cleaned | B．have worked | C．was cleaning | D．have been cleaning |
.
Straight away I went to buy the tickets, but there were_______left for the next public holiday.
| A．nothing | B．none | C．neither | D．no one |
.
Was it in the village___ we used to live in____ the accident happened ?
| A．where, that | B．which, that | C．that, where | D．where, which |
.
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 |
.
After some time in the dark cave, our eyes slowly _____ the dark.
| A．used to | B．adapted to | C．accustomed to | D．helped to |
.
Seldom out time to watch TV on Sunday.
| A．I can squeeze | B．can I squeeze | C．squeeze I | D．I squeeze |