A:show off
B:go u
C:fit i
D:come over
单词拼写:根据首字母或汉语意思,写出正确的单词。
如图,在菱形ABCD中,E,F分别是AB,AC中点,如果EF=3,那么菱形ABCD的周长是 ( )
补全对话, 其中有两个多余选项。
A: Hello! This is Tom speaking. ____
B: Sorry, Jack is out at the moment.
A: ____
B: This is Jack’s mother.
A: Hello! Mrs Brown. ____
B: Of course. ____
A: That’s very kind of you. Would you please tell Jack we will have a party about stamp collection this Sunday morning?
B: Oh, a party about stamp collection on Sunday morning. OK, ____
A. Who's speaking, please?
B. Hold the line, please.
C. Can you take a message for me?
D. Can I take a message for you?
E. I'll tell him as soon as he comes back.
F. Could I speak to Joe, please?
G. Could I speak to Jack, please?
旧石器时代,人类生活最初依靠( )