【单选题】
After the experiment in the laboratory, they began _________ their reports.
①
written
②
write
③
to write
④
writes
【单选题】
10.In January, 2004, the United States successfully launched “spirit”, a Mars Exploration Rover, _____ a new milestone in the history of mankind.
①
it marked
②
marking
③
marked
④
to mark
【单选题】
After ten years, all these youngsters became____.
①
grown-up
②
grown-ups
③
growns-ups
④
growns-up
【单选题】
After15yearsintheUnitedStates,hehasfinallydecidedto Americancitizenship.
①
concentrateon
②
applyfor
③
lookoutfor
④
appealon
【单选题】
Miss Green was ____ $100 for driving after drinking.
①
fined
②
charged
③
punished
④
posed
【单选题】
After a lot of difficulties, he _______ to open the door.
①
managed
②
succeeded
③
accomplished
④
tried
【单选题】
After dinner the minister made a short ___ to the guests.
①
delivery
②
pronunciation
③
conversation
④
speech
【单选题】
在循环语句的循环体中，break语句的作用是（）。
①
继续执行break语句之后的循环体各语句
②
提前结束循环，接着执行该循环后续的语句
③
结束本次循环
④
暂停程序的运行