After the new technique was introduced，the factory produced in 2001 as the year before．
| A．as twice many machines | B．twice many as machines |
| C．as many machines twice | D．twice as many machines |
____his scientific work, he has no time to care for his family affairs, which his wife always complains about.
| A．Devoting to | B．Being devoted to | C．Devoted with | D．Devoted to |
She hurriedly left the room as if ___.
| A．she angry | B．was angry |
| C．it was angry | D．angry |
—She may not be free today.
—___, we’ll have to put the meeting off.
| A．If may | B．If not |
| C．If she may not | D．If she may not be free today. |
—Is your mother going to the supermarket ?
—No, ____.
| A．she doesn’t | B．she’s cooking |
| C．she gets by bus | D．to a tailor’s shop |
—Did you visit the museum last week ?
—No, we ___, but we spent too much time shopping.
| A．could have | B．could |
| C．must have | D．must |