Mother told me in a phone call that she had written to me a week before, but I haven’t received__________.
| A．one | B．it | C．something | D．anything |
For more than a decade, experts from across the globe ________ on the cure of the disease that way.
| A．worked | B．are working | C．have been working | D．were working |
-- The terrible earthquake brought about $ 15 million to this island country.
-- ________.
| A．Certainly | B．I agree with you | C．It's OK | D．That's the case |
Washing machines made by China have won ________ worldwide attention and Haier has become ________ popular name.
| A．a; the | B．/ ; a | C．/; the | D．the ; a |
________ all over the hills and around the lake are wild flowers of different colors.
| A．Grow | B．To grow | C．Growing | D．Grown |
-- It cost me 30 yuan to get here.
--Well, it was crazy of you to take a taxi ________ you could come by bus as well.
| A．while | B．if | C．because | D．when |