1.The most famous are the Canadian Roswell,_______(know)in China as Dashan.
问题描述：
1.The most famous are the Canadian Roswell,_______(know)in China as Dashan.
2.They sat there,________(read)their textbooks.3.---Is Tom in?---_____,please.I'll see if I can find him for you.A.Hold up B.Hold on C.Hold off D.Hold out
答
1.known
2.reading
3.B