欧美日韩黄网欧美日韩日B片|二区无码视频网站|欧美AAAA小视频|久久99爱视频播放|日本久久成人免费视频|性交黄色毛片特黄色性交毛片|91久久伊人日韩插穴|国产三级A片电影网站|亚州无码成人激情视频|国产又黄又粗又猛又爽的

Sharon is __________ great success as a singer. It’s _________great honor to go to her concert at the      opera house.   .

A．a(chǎn), the            B．\ , the            C．\ , a              D．a(chǎn) , a

If you want to see the chairman of the department, you’d better make an _________ with his secretary first.

A．a(chǎn)ssumption        B．a(chǎn)ppointment       C．a(chǎn)greement        D．a(chǎn)dmission

People drank a kind of tea _________ from leaves _________ a special chemical to reduce body pains and fever.

A．making , possessed                      B．made , possessing

C．having made, possessed                  D．having been made, possessing

Not only _____________ vital for reducing fever, but __________ also other things that it can help with.

A．a(chǎn)spirin has proved, are there              B．has aspirin proved, there are

C．has proved aspirin, are there              D．a(chǎn)spirin had proved, there are

Another drug that has helped improve people’s health is penicillin, _________ is _________ by many _________ one of the most important medicines.

A．which, considered, being                 B．that, considering, been

C．that, to consider, being                   D．which, considered, to be

If penicillin _____________ available, many people ______________ from sickness.

A．weren’t , would have died               B．shouldn’t be, would die

C．hadn’t been, would have died            D．is, will die

Do you know in what circumstances was it____________ Jack achieved his goal?

A．how             B．where            C．when             D．that

While doubts about the medicine’s safety have____________, interest continues to grow.

A．dropped out       B．fell down          C．withdrew from     D．faded away

__________ these tips, and your time _______ doing research on the Internet _________ much worthwhile.

A．Following, will spend, is                   B．Followed, spent, was

C．Follow, spent, will be                     D．To follow, spending, has been