—Tony, you must have noticed the student who broke the window.
—I’m sorry. I _______ attentively.
| A．studied | B．was studying |
| C．am studying | D．would study |
Lisa __________ eat lots of desserts after supper, so she was very fat then.
| A．used to | B．was used to |
| C．got used to | D．had been used to |
There __________ some old black leather baskets in the corner of the dust room.
| A．used to have | B．was used to having |
| C．used to be | D．used to being |
The old man used __________ in front of his house and he has got used to __________ like that.
| A．to sit; doing | B．to sitting; do |
| C．to sit; do | D．to sitting; doing |
I found the homework was not so heavy as __________ I __________ to get in my old school.
| A．that; was used | B．what; used |
| C．which; used | D．that; used |
—May I ask a question after class, Sir?
— __________, but not during my lunch break.
| A．I am sorry | B．Anytime |
| C．Go ahead | D．Certainly |