The aging population _____ each day .There must be some kind of interesting activity for the old.
| A．has grown | B．grew | C．will grow | D．is growing |
John passed the examination though he had only spent _______ on the subject as others had done.
| A．as half time much | B．as half much time |
| C．half as time much | D．half as much time |
He started to work dilligently _____ he came up with the idea of hybrid rice for the first time in the 1960’s.
| A．at once | B．the moment | C．for the moment | D．in no time |
Once e-mail learners _______ with the basic knowledge of how to use the network, they ______ to a local network and a global network.
| A．are equipped … will be linked | B．are equipping…will be linked |
| C．are equipped … will link | D．will be equipped…will be linked |
Yuan Longping, known as the “father of hybrid rice”, doesn’t care about money or about ____ people call position.
| A．that | B．such | C．what | D．which |
Charles Darwin, a young man just out of university, knew perfect well that he had to depend on _____ when he set out on a voyage of discovery around the world.
| A．him | B．himself | C．themselves | D．them |