单项选择题
A.Work B.Worked C.Working D.To be working
The river （） to the east. It is the second longest rive...
单项选择题The river （） to the east. It is the second longest river in the country.
A.runs B.is running C.run D.ran
"The ceremony has already started." "Look! The flag（）no...
单项选择题"The ceremony has already started." "Look! The flag（）now."
A.is being raised B.is risen C.is being rose D.is raising
I feel it's an honor（）to attend the opening ceremony of...
单项选择题I feel it's an honor（）to attend the opening ceremony of the new bank.
A.to invite B.of being invited C.to be invited D.having invited
