—Can I eat the cake ,Mum?—Yes, you can. ______you must wash your hands first .A. But B. Or C. So
Do you think _____ a football match tomorrow?
Next term my sister ________ to draw pictures.
—_____ she have breakfast this morning? —No. She left home _____ breakfast.
Xi’an is one of ______ capital ______ in China.
If we keep planting trees, our country will become ______.