In the old days, cows ________ farm work.
| A．used to doing | B．were used to doing |
| C．were used to do | D．was used to do |
Some students are doing their homework in the classroom while ______ are reading.
| A．another | B．the other | C．other | D．others |
I was feeling hungry, ______ I bought myself a sandwich.
| A．but | B．so | C．or | D．because |
The2014 Winter Olympics started ______ February7,2014.
| A．at | B．in | C．on | D．to |
Where’s Dad? Mum is looking for ______.
| A．him | B．her | C．me | D．them |
I didn’t know ______ last year.
| A．where he lives | B．where does he live |
| C．where he lived | D．where did he live |