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 |
The sunlight is white and blinding, _______ hard-edged shadows on the ground.
| A．throwing | B．being thrown | C．to throw | D．to be thrown |
The engine just won't start. Something seems ________ wrong with it.
| A．to go | B．to have gone |
| C．going | D．having gone |
Let those in need ________ that we will go all out to help them.
| A．to understand | B．understand |
| C．understanding | D．understood |
They might just have a place ______ on the writing course—why don't you give it a try?
| A．leave | B．left |
| C．leaving | D．to leave |
(2013·浙江，7)________ how others react to the book you have just read creates an added pleasure.
| A．Hearing | B．Hear |
| C．Having heard | D．To be hearing |