单项选择题
It is important that the report（）to the general manager at once.
A．sent B．be sent C．is sent D．will be sent
单项选择题 Watch your head! You（）be more careful!
单项选择题 The lazy student told his parents a lie（）they had no class that afternoon.
单项选择题 The museum（）we visited last Saturday was set up twenty years ago.
