Ann is a careful girl. She always goes over her exercises to____ there are no mistakes．
A．look for B．make sure
C．find out D．think about
To be healthy, one must have at least _____ sleep every day.
A．eight hours B．eight hour’s
C．eight-hour’s D．eight hours’
There are forty students in Class Four. And of them girls.
A. two three, is B. two thirds, is
C. second threes, are D. two thirds, are
The Greens left London a sunny morning.
A. to, in B. to, on
C. for, on D. for, in
Your Ipad is quite nice. Where did you buy______? I want to buy______, too．
A．one; one B．it; one C．it; it D．one; it
The students didn’t find much about the topic on that website.
A. report B. article
C. information D. story
