I don’t think she saw me just now. She_________ the beautiful vases.

The manager ______ the workers how to improve the program since 9 am.

---Did you ask Sophia for help?
---I ______ need to – I managed perfectly well on my own.

I had been working on math for the whole afternoon and the numbers        before my eyes.

"Life is like walking in the snow", Granny used to say, "because every step      ”

一 When did the computer crash?
一 This morning, while I   the reading materials downloaded from some websites.

— Alvin, are you coming with us?
— I'd love to, but something unexpected    .

Peter had intended to take a job in business, but _____ that plan after the unpleasant experience in Canada in 2010.

Food supplies in the flood-stricken area          . We must act immediately before there’s left.

--Kevin, you look worried. Anything wrong?
--Well, I         a test and I’m waiting for the result.