While other scientists are keeping____eye on changes in the H5N1 bird flu strain, the scientists in England are working on vaccines, in case it becomes highly infectious in ____humans.
A.a , / | B.an, / | C.the, an | D.an, the |
Fengjun,_______ president of Aigo Technology Company, is the second Chinese billionaire to promise _________all-donation after Chen Guangbiao.
A.the; / | B.a; an | C.the, the | D./; an |
In that south American country, _____bicycle is not_______ popular means of transportation.
A.the;a | B.a;不填 | C.a:the | D.the;the |
---What do you think of ________ gifted chemist from London?
---Well, sometimes his behavior is beyond ________ comprehension.
A.a, the | B.the / | C.the the | D.a / |
Never lose _____ heart. There is always a chance of _____ weak defeating _____ strong.
A.×; the; the | B.the; the; the | C.×; ×; × | D.a ; the; the |
_______ person who is responsible for his work will react quickly in _______ emergency.
A.A; / | B.A; an | C.The; / | D.A; the |
Dan Brown,_____ author of The Da Vinci Code, is _____ very famous American writer.
A.a;the | B.the;the |
C.the;a | D.a;a |
— Have you seen ______ film before?
— Yes. I saw it on ______ Christmas Day, but I can’t remember the exact year.
A.a; a | B.a; the | C.the; a | D.the; the |
New iPhone goes on sale on Friday with ____ bigger screen and 4G wireless technology, as _____ company seeks to keep its competitiveness.
A.a; the | B.a; a |
C.the; the | D.the; a |
Jane’s grandmother had wanted to write children’s book for many years, but one thing or another always got in way.
A.a;不填 | B.the;the | C.不填;the | D.a;the |
Tom, a shy boy, who lacks ______ confidence, doesn’t get ______ attention he deserves.
A.the; the | B./; the | C.the; / | D./; / |
Although it doesn't look like_,the entire cathedral is made of wood.
A.it | B.that | C.this | D.such |
The "Chinese Dream" is ______dream to improve people's well-being and _____ dream of harmony, peace and development.
A.the; a | B.a; a | C.a; the | D.the; the |
If you have _____ good command of French, you will be offered _____ work we talked about.
A./; / | B.a; / | C./; a | D.a; the |