--- 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 |
The fire ______ at might was still seen ______ the next morning.
| A．breaking out; burning | B．to break out; to burn |
| C．broke out; burnt | D．had broken out; burning |
The old man has three sons，and two _____ are doctors．
| A．of which | B．of whom | C．of them | D．of that |
"How dare you say that?" The teacher said ___ to Tom.
| A．angrily pointed | B．and angrily pointing |
| C．and point angrily | D．angrily pointing |
We have to keep with the changing times.
| A．step | B．the pace | C．a pace | D．pace |
---Be careful! Your clothes will catch fire.
---Thank you._______ so close to the fire.
| A．I didn’t know I was | B．I don’t know I am |
| C．I hadn’t known I was | D．I don’t know I was |