—What do you think of a house supplied by Lovell?
— you buy a home from Lovell，the company promises to buy it back at the same price after three years.
A：Should
B：Must
C：Could
D：Would
已知y与x+1成正比例关系，当x=2时，y=1，求：当x=﹣3时y的值．
下列各句中，没有语病的一句是（ ）
