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
