I ________ use a clock to wake me up because at six o'clock each morning the train comes by my house.(2012·新课标全国)
Professor Smith is now ________ the company, which was once________ Professor White.
He is an old doctor with a lot of ________. But he has never travelled by air before.Taking a plane was quite ________ experience for him this time.
I’m for that he’ll stay here.
If you dare do it, so I .
His arms were sunburnt because he in the sun all day.