问几道初三英语单项选择题.有关新课标Unit6定语从句.

问几道初三英语单项选择题.有关新课标Unit6定语从句.
1.Summer is the time of year____the days are long and nights are short.
A.when B.where C.on which D.that
2.The doctor stops him smoking____he has got a heart disease.
A.why B.what C.because D.cause
3.The man with____the policeman is talking is a thief.
A.who B.whom C.which D.that
4.The house____roof was blown off has been repaired.
A.who B.that C.whom D.whose
5.Beijing,____is the capital of China,is a beautiful city.
A.that B.it C.which D./
6.That's the hotel____last year.
A.which we stayed B.at that we stayed
C.where we stayed at D.where we stayed
7.I had to work hard and____the others after missing a term.
A.keep up with B.catch up with
C.come up with D.put up
8.I prefer to walk there rather than____a bus.
A.take B.takes C.to take D.taking
9.If you don't have____sleep,it can make you unhappy in different ways.
A.some B.many C.enough D.lots of
10.Tom would prefer____in the west after graduation.
A.to work B.working C.worked D.will work
11.I really don't know____to talk about.
A.how B.what C.when D.whether