____ the TV play, he got down to ____ his homework.
A. Watching; do B. After his watching; do
C. Watched; doing D. Having watched; doing
—Will you go skiing with me this winter vacation?
--- It __________________.
A.all depend. B. all depends. C. is all depended D. is all depending
I lost my way. I wonder ________ I can turn in the dark.
A. who B. whom C .to whom D. for whom
—Do you mind if I keep pets in the building?
--- _________________.
A. I’d rather you didn’t actually. B. Of course not, it’s not allowed here.
C. Great! I love pets. D. No, you can’t.
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
