Mary and Joy are ____ Class One. They are ____ the USA. A. from; in B. in; from C. to; from D. in; to
____ was your last vacation? Exciting.
It’s too hot. We should ____ the windows ____.
Don’t get off the bus ____ it stops.
____is “Lucky 52” shown on CCTV-2? Every week.
— I wonder if I can learn English well. —________. All things are difficult before they are easy.