--- Tom, you won’t make much progress_________ you work really hard.
---Ok, I will try my best.
A. if B. though
C. unless D. when
He usually ________ one hour on his homework.
A. spends B. costs
C. takes D. pays
He _________________ his wife for ten years
A. has married B. has been married with
C. has been married to D. got married to
---Who do you think can do the voluntary work?
---______ who is willing to help can do it.
A. No one B. Anyone
C. Someone D. Neither
Our brain is just like our body, the more we use it, ______ it gets.
A. the better B. the best
C. the worse D. the worst
I have some information about the astronauts _______ is helpful to you.
A. who B. what
C. which D. whose
