几道高三英语单选题,蛮难的,

几道高三英语单选题,蛮难的,
1.Great Food Co.is the market leader.We should have trust in it.
Well,I'm afraid its record in economic crisis-management______confidence.
A.does inspire B.does not have C.does have D.does not inspire
D.我选了B（请给我讲讲后句的大概意思）
2.Try as I______,I couldn't work out the answer.
Don't______and you'll make it.
A.might;give up B.must;give off C.might;give off D.must;give up
A.我选了D
3.Housing price is still very high.
So it is,Many families are finding suitable housing ______.
A.beyond their grasp B.within their reach C.beyond their control D.under control
A.我选了B
4.RECEPTIONIST:required immediately at the Grand Hotel.______ speak Japanese.Phone 67980789.
A.Must B.Will C.Ought to D.Could
A.我选了D