I called Mary many times yesterday evening. But I couldn’t get through. Her brother _____ on the phone all the time.

He     a bike in the street when he was hit by a car.

—Your father isn’t in. Where is he?
He    Beijing on business.

--When did you become a volunteer for the elderly?
-- Two years ago. I ______ this group since then.

I won’t go to see the film this evening because I _____ my ticket just now.

--- Where is your mother?
--- She _______ to Sichuan on business. She has ______ there four times recently.

---Do you know our town?
--- No, this is the first time I ________ here.

It’s two and a half weeks since the exchange students __________ Wuxi.

He will send me an e-mail as soon as he _____ in America.

I must return the book to the library. I _____ it for one week.