Recently some studies have found that learning ___________ second language can lead to __________ increase in one’s brain power.
A、a; the
B、不填; the
C、a; an
D、the; an
Dirk Andrewi,Tony were named as assistant professors, Believe it nor not, three of them were ofage．
A、／：all
B、／：the
C、the；all
D、the ;the
—My son is lost . Have you seen a boy passing by here? —I saw boy hidden behind tree over there . You may go and have a look.
A、a; the
B、the; the
C、a; a
D、the; a
II. Grammar and Vocabulary (15 points) 21. Hunger is _____ number one global health risk, so ______WFP has organized a lot of programmes, which targets people most at ________risk.
A、the, the, /
B、a, the, /
C、the, / , /
D、a, a, a
– What will motoring be like in the future? – Most probably it will be ________ electric car, powered by ________ battery
A、the, a
B、the, the
C、/, a
D、an, /
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
Mr Green was made_____general manager of the IT company last week．Look, ______new manager is coming．
A、a; the
B、a；/
C、／；the
D、the；/
--- What about__________concert? --- It was too boring, you know, ________concert for me.
A、a; the
B、the; the
C、a; /
D、the; a
25.After studying chemistry for years, I can only say I have ___ general knowledge of this subject.
A、/
B、a little
C、a
D、Some
—Have you seen___________pen? I left it here this morning. —Is it___________black one? I think I saw it somewhere.
