早上你在校门口遇到你的英语老师,你应该向老师说_______打招呼。
After two ____ work, Tom was too tried to move.
A number of ______are on in the museum. Let’s see them tomorrow.
Pork is healthy ______ and tea is a healthy ______ .
Grandma is now at _____.
Where’s Beijing? It‘s in _____.