—The battery in my cell phone is running low.
—I that last night before we went to bed.
| A．was noticing | B．have noticed | C．would notice | D．had noticed |
About an hour after sunrise, I rode across the countryside——birds were singing.
| A．where | B．which |
| C．that | D．when |
It was very dark, ____Jane seemed to know which way take at the crossroads.
| A．or | B．and | C．but | D．so |
---How did you find your visit to the Summer Palace yesterday?
---______. I got separated from my 80-year-old grandparents.
| A．It couldn’t be better |
| B．I have no idea |
| C．Good luck to me |
| D．It couldn’t be worse |
______ in his novel, he didn’t notice his teacher entered the classroom.
| A．Having absorbed | B．Absorbing |
| C．Absorbed | D．Being absorbed |
It took me quite a while to ______ how to solve this problem.
| A．figure out | B．stand out |
| C．put out | D．run out |