A：地球外的陨石，坠入地球的大气层，成为流星
B：炎热的夏天，西瓜在冷水浸泡后吃起来更加凉爽可口
C：划着火柴，火柴燃烧
D：锯木头时，锯条变得烫手
⑴What are you doing?____ A. She will get a present.
⑵What happened to him?____ B. He was lost.
⑶What will Jenny get?____ C. She must hurry up
⑷What must she do?____ D. I'm reading a story book.
在△ABC中，a，b，c分别是角A，B，C的对边，没A=60，a=43，b=42，则B=( )
她曾经发回一些照片。 (send back)
____
一 Don't ______ away rubbish everywhere, Mike.
一 Sorry, Dad. I'll clean the house at once.
