问题

_______ is necessary for you to lock the car when you don’t use it.
A:What
B:This
C:It
D:That
B:This
C:It
D:That
正确答案是:
同类题型
I haven’t got an armchair_________. Will you make room for me?
What’s wrong with Tom? —— Bad luck! Tomhis bike and hurt his leg.
In ________ old society many young women died by so strange and cruel ________ custom.
It is said that the gravity on Mars is only aboutof the gravity on earth.
Do you have _______ email address? —Sorry, I only have a Wechat (微信) ID