If the weather had been better, we could have had a picnic. But it ___ all day.
| A．rains | B．rained | C． has rained | D．is raining |
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 |