She left (严格的) instructions in order not to be disturbed at meetings.
Mr.Wang often (鼓励)us to answer questions in class actively.
More and more people like to greet each other by (发送)messages.
When I got to the (机场),the plane had taken off.
Anna is more (外向的)than her sister.
The guide taught us how to make a model (机器人).