It’s not easy for trailwalkers to finish walking a__ trail within 48 hours.
| A．100-kilometre | B．100-kilometres |
| C．100 kilometres | D．100 kilometres’ |
His wife advised him________ drinking, but he wouldn't.
| A．to give up | B．gives up | C．gave up | D．giving up |
That beautiful skirt is _____ cotton.
| A．made of | B．made into | C．made from | D．made up of |
— Why _____ most stars _____ in the daytime?
— Because the sun is too bright.
| A．can’t; see | B．can’t; be seen |
| C．weren’t; see | D．weren’t; seen |
— Students _____ be allowed to use mobile phones at school.
— I agree. Phones can bring troubles.
| A．shouldn’t | B．wouldn’t | C．might | D．need |
— Do you mean you will join the club?
— Yes, I am _____ it.
| A．nervous about | B．tired of |
| C．careful with | D．serious about |