书写占三格的字母是_____________
You could hardly imagine _____ amazing the Great Wall was _____you saw it with your eyes.
—May I go to the cinema with Tom tomorrow, mom? —Of course, if your homework _______ by then.
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.