Someone who lacks perseverance is unlikely to _______ a good researcher.
A.make B.turn C.get D.grow
______ acupuncture developed, the simple “bian stones” were replaced first by stone and pottery needles, and ________ by metal needles.
A.As ,eventually B.With, eventually
C.With, accidentally D.As,accidentally
Most of our dreams that used to be impossible have ________ true.
A.came B.come C.gone D.appeared
The little girl ________ a cry at the sight of a big snake.
A.let out B.gave out C.made out D.shouted out
Penicillin was then produced ________ in order to meet the demands of the armies.
A.in large amounts B. in large plenty
C.in large quantities D. in large number
A study ________ in the U.S.A. in 1977 showed that the chemical ASA in aspirin could prevent a stroke.
A. carrying out B. carried out C. working out D. worked out