It’s the second time that I _______ in Beijing. What great changes! It’s years since I ________ here last time.
The fire _______ before the fire-fighters arrived.
With some snow on top of it,the Yellow Mountain looked fantastic this winter.Actually, I doubt whether we could visit ______mountian in China.
---Would you mind letting me ______ your laptop for another two weeks? ---No problem.
It is well known that water is not _____ endless resource,nor _____ that can be made once more.
---Mom.I’m so tired.I can’t walk any further. ---______, my dear.You can make it.