Lin saw __________ UFO last month. It’s strange.
It be the postman at the door.It’s only six o'clock.
The lift in that tall building went wrong and got trapped the floors.
—How was your recent trip to Thailand? —I’ve never had one before.
You have to move out of the way, the truck cannot get past you.
This project requires close teamwork. will be achieved unless we work well together.