It has been proved __________ eating vegetables in childhood helps to protect you against serious illnesses in later life.
| A．if | B．because | C．when | D．that |
______ to computer games, he had no time to go over his lessons. As a result, he failed in all subjects.
| A．Addicting | B．Being addicted |
| C．Having addicted | D．Addicted |
---- Did he give you advice on your work yesterday?
---- Yes. But his advice, as a matter of fact, ______ my difficulty.
| A．used to | B．related to |
| C．added to | D．belonged to |
Mountain climbing ______ be really dangerous at times even though it is challenging and exciting in general.
| A．can | B．should | C．shall | D．must |
The music, ____________ pleasant, was soon well received when it was taken to the stage.
| A．sounded | B．being sounded | C．sounding | D．having sounded |
----Did the reference give the information you needed?
----Yes, but it, I had to read it entirely.
| A．to find | B．having found | C．finding | D．find |