The next generation of telescopes will reveal(显露;揭示)new parts of our universe that will seem surprising, just as the moon’s craters(坑) when observed 400 years ago.
—Would you like to join me for a quick lunch before class? —______, but I promised Nancy to go out with her.
--- I am taking my driving test tomorrow. --- _______!
I’ll try my best to _____ the lost time.
It was ten o’clock _______ we got to the top of the hill.
_____ you take a taxi, you’ll still miss your train.