About seventy percent of our earth _______ by water.
A. is covering B. is covered
C. are covered D. are covering
Don’t worry about your boy. His temperature will ______ back to normal（正常）if he takes this medicine.
A. drop B. rise C. go D.travel
Don’t ______ until the bus stops. Or it’s too dangerous.
A. get it on B. get into it
C. get off it D. get it off
Mr. Smith was ill ______. He had to have three weeks ______.
A. in hospital, off B. in the hospital, rest
C. in hospital, rest D. in the hospital, off
Paul made a nice cage ______ the little sick bird till it could fly.
A.keep B. kept C. keeping D. to keep
--Don’t forget to come tomorrow. --- OK, _______.
A. I will B. we won’t
C. I do D. I don’t
