______ is often the case in science, there is no simple answer
| A．That | B．As | C．When | D．Where |
Jimmy needs to improve his technique if he __________ gold in the 2008 Olympics.
| A．wins | B．is winning | C．is about to win | D．is to win |
__________ your teacher’s advice, I think, and the problems could be settled.
| A．Follow | B．Following | C．Followed | D．Follows |
The young famous writer owes his success to many people, his parents _______.
| A．in turn | B．in particular | C．in return | D．in peace |
A lot of people __________ about the painting, but my father always says it’s not for sale.
| A．had asked | B．asked | C．were asking | D．have asked |
________ recent report says that all ________ sea water will have been polluted by 2040.
| A．The; the | B．The; 不填 | C．A; the | D．A; 不填 |