—What can we do to prevent (避免)being ill?—We should do more exercise and eat a ________ diet to take good care of ______.
Mark needs to learn Chinese _______his company is opening a branch in Beijing.
The project they’re working on ________ many teenage problems that they care about.
My parents are ________ with the __________ trip.
Why is _____ honest teacher like him supported by ________ few students?
* —Mum, we’re going to visit an old town this weekend. —________!