All the students hope to _____ in their study, but it needs ____________.
Look ! There’s a watch _______ on the ground .
Please give me _________.
Beijing is ______big city and it’s ________ capital of China .
This is a bridge _______ the river and there are many boats _______the river .
---Hello! Who’s that _______ ? ---This is Mary . I’d like to ______ to Andy about tomorrow’s trip.