--- Do you know _____ Mr. Black’s address is.
--- He may live at No. 18 or No. 19 of Bridge Street. I'm not sure of _____.
| A．what; which | B．where; which | C．where ; what | D．what; where |
It was not until mid-night _____ he went back home after the experiment.
| A．when | B．/ | C．that | D．before |
I don’t know why she suggested that we _____ the work before dark.
| A．finishing | B．finish | C．would finish | D．to finish |
— _____ for the glass!
—It’s OK. I’m wearing shoes.
| A．Look out | B．Walk out | C．Go out | D．Set out |
The bell rang and came in Mr. Brown, _____ a book in his hand. Then the class began.
| A．for | B．when | C．with | D．while |
I _____ many unnecessary words in my article, leaving it much shorter.
| A．shortened | B．cancelled | C．left | D．replaced |