I saw her in the office this morning. She ______ back to work without the doctor’s permission.
| A．couldn’t come | B．couldn’t have come |
| C．should have come | D．should not have come |
The hotel wasn’t particularly good. But I ____ in many worse hotels.
A .was staying B, stayed C. would stay D. had stayed
Scientists are trying to develop a special material, _______ they will make use of in space.
| A．it | B．that | C．what | D．one |
The education of _______young is always _______ hot and serious topic in modern society.
| A．the; / | B．a; the | C．/; the | D．the; a |
She insisted that she ______ not guilty , but we insisted that she ____ into prison
| A．was; be put | B．be ; was put |
| C．should be; was put | D．was; should put |
I found her nice and honest ____ I saw her．
| A．for the first time | B．the first time |
| C．on the first time | D．at first |