----- Mary looks very upset. She _______ failed to pass the exam. ----- I guess so. It's very difficult after all. A must have B could have C should have D might have
An excellent teacher is believed to be one who devotes (奉献) himself to the children but asks for nothing .
the wealth of the country increases, more waste will be produced.
---Can you tell me by whom the speech next Friday? ---Mr. Green, our geography teacher.
The little boy has been nice recently and he thinks hea toy train for Chirstmas.
Hangzhou is a famous city in China, many people come to buy tea.