Being popular with customers , the products _____ well and ____ in two months .
| A．sell ; sell out | B．are sold ; sell out |
| C．sell; will be sold out | D．are sold ; will be sold out |
China has made efforts to respond to _______ climate change, and set targets to control greenhouse gas emissions by 2020.
| A．/; / | B．/; the | C．the; / | D．the; the |
-- Sorry, I can't return your book today. I am only half way through it.
-- ________. I have plenty of other books to read.
| A．Take it easy | B．No wonder | C．Take your time | D．No doubt |
Alice was______________the letter from Tom, but it didn't reach her for some reason.
| A．expecting | B．waiting | C．waiting for | D．expected |
Albert Einstein, ________ life had once been very hard, was given the Nobel Prize for physics in 1921
| A．of whom | B．for whom | C．for whose | D．in whom |
All these changes will lead to ________ strong and powerful China, _______ country that can surprise and enrich our planet.
| A．a; a | B．the; a | C．the; the | D．a; the |