单项选择题
A.who B.whom C.whose D.what
This is Mr. Green and this is Mr. Brown.（）A.How do you ...
单项选择题This is Mr. Green and this is Mr. Brown.（）
A.How do you do B.How are you C.Fine, thank you D.Hi, how are you getting on
This is John.（）A.Oh, I have never seen you. B.Yes, I ...
单项选择题This is John.（）
A.Oh, I have never seen you. B.Yes, I am glad. C.Hello, John. Nice to meet you. D.How are you?
This box is too heavy for me to carry it upstairs.（）A.Y...
单项选择题This box is too heavy for me to carry it upstairs.（）
A.You may ask for help. B.I'll give you a hand. C.Please do me a favor. D.I'd come to help.
