My grandfather have an old house in _____ they have lived for 70 years.
A. that B. which
C. what D. where
---Why don't you go hiking today?
----I prefer ______ at home to ______out because the weather is too bad.
A. staying ; going B. stay ; go
C. to stay ;go D. stay;going
- Tell me everything _____ you know.
A. which B. where
C. whose D. that
The scientist devoted much time to on the 9roject that he succeeded in the end．
A．so；working B．so；work
C．such；working D．such；work
____pretty the dragon boats were！
A. How B. How a
C. What D. What a
--Do you know________?
---Yes, in two weeks.
A. when will Mr Li come back
B. how long Mr Li will come back
C. what time will Mr Li come back
D. how soon Mr Li will come back
