The factory has produced ____ computers as they did last year.
| A．twice as many | B．twice as much |
| C．as twice as many | D．as twice much |
Everyone in the class is expected to ______ these discussions.
| A．participate | B．participate in | C．take part | D．join |
— Does your brother intend to learn German?
—Yes, he intends _______.
| A．/ | B．to | C．so | D．that |
We must do whatever we can ______ those who are in trouble.
| A．help | B．helping | C．do help | D．to help |
—Have you handed in your schoolwork yet?
—Yes, I have. I guess it ______ now.
| A．has graded | B．is graded | C．is being graded | D．is grading |
You can never imagine what great ________ we had _______ your school last time.
| A．difficulty; finding | B．difficulty; to find | C．difficult; finding | D．difficult; found |