The maths problem was so difficult that none of us could ____.
A. try it out B. work it out C. look it up D. work on it
—Yesterday，my father bought me a new mobile phone as a present，but I don't know how to use it.
—Why not read the ________ first before using it?
A. expressions B. instrument C. advertisements D. instructions
The football match went on, it rained heavily last night.
A. if B. though C. so that D. so
They take great pride _______ their daughter who is now a famous scientist.
A. for B. in C. of D. on
—___________is it from here?
—About twenty minutes’ ride.
A. How long B. How often C. How far D. How soon
In the end, he _______ the cancer.
A. died to B. died of C. died for D. died from
