I haven' t seen Mary these past few days. I m afraid she ____ herself for some time.
| A．isn't feeling | B．hasn' t been feeling |
| C．hadn't been feeling | D．wasn't feeling |
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
I wonder if this is the computer you want______ .
| A．to have repaired | B．to have it repaired | C．it to be repaired | D．to repair it |