( ) —— I'm sorry I can't help you. —— ________. A. Not at all. B. You are welcome. C. It doesn't matter.
Aunt WanRong is my mother’s ____.A. sister B. brother C. son
I know ____Canada .A. about B. with C. in
____live in Australia .A. Kangaroos B. Queens C. Niagara Falls
China is_______we live. A. where B. Where C. there
Look ____this map .A. at B. in C. on