Who is it______have the most important role to play in stopping Yellow River erosion?
A,who B.that C.which D.whom
People are __________ shoppers in China on November 11th, contributing to more than 35 billion online shopping sales．
| A．potential | B．enthusiastic |
| C．intelligent | D．temporary |
— Didn’t you talk any with Rice?
—No, the plane __________ off when I rushed to the airport to see her off．
| A．was taking | B．had taken |
| C．took | D．has taken |
—Look at those clouds!
—Don’t worry． __________ it rains, we’ll still have a great time．
| A．Even if | B．In case |
| C．As though | D．If only |
Li Chen and Fan Bingbing have fallen in love with each other, __________ a hot topic in the entertainment industry．
| A．having made | B．to make | C．making | D．made |
What is bothering Obama is how to improve medical care to benefit people． __________, how to create health care system that helps people is his present-day trouble．
| A．In other words | B．On the other hand |
| C．On the contrary | D．As a matter of fact |