当你向别人介绍你的朋友John时，应该说：_______ ( )
| A．Hello! I’m John. | B．This is John. |
你想询问有多少块橡皮，你应该问： ( )
| A．How many erasers？ | B．How many eggs？ | C．How old are you? |
现在是早晨，Sarah去Mr Black那儿看病，她应该说： ( )
| A．Good morning，Mr Black. | B．Good afternoon，Mr Black. |
| C．What's your name? | D．Who are you? |
Sarah想向Mr Black道别，她应该说： ( )
| A．Thank you. | B．I'd like some bread. |
| C．Eat some rice. | D．Goodbye！ |