.
Though Lucy is only ___ 11-year-old girl, she has ___ gift for singing.
| A．a; a | B．an; the | C．an; a | D．a; the |
The teacher is writing ____ a piece of chalk on the blackboard while the students are writing ____ink in exercise books.
| A．with, in | B．in, with | C．in, in | D．with, with |
—You know. Bob is a little slow ____ understanding, so…
— So I have to be patient ______ him.
| A．in ; with | B．on; with | C．in; to | D．at; for |
We were just about ready to leave _____ it started to snow.
| A．when | B．before |
| C．after | D．since |
_____ the government agrees to give extra money , the theatre will have to close.
| A．Until | B．Unless |
| C．Since | D．While |
It shocked me to see ______ my neighbors treated their children.
| A．why | B．whether |
| C．how | D．since |