A:{x+2≤31x−3<2
B:{x+y<23x+1≥0
C:{3>22x≥4
D:{x≤3x>6
⑴What's your favourite food ?____ A. Ten yuan.
⑵Where do tigers live ?____ B. They live in the forest.
⑶What's for lunch ? ____ C. I like some noodles.
⑷How much is it ?____ D. My favourite food is rice.
⑸Can you swim ?____ E. No, I can't.