. It is Tom rather than his classmates that _________ to blame for what has happened.
A. are B is C. were D. was
Silver is the best conductor of electricity, copperit closely.
| A．followed | B．to follow | C．following | D．being followed |
Mr. White works as a lawyer now, but hein a company for several years.
| A．worked | B．has worked | C．had worked | D．has been working |
I’m no painter, and to me, one painting is much like.
| A．the other | B．others | C．another | D．one |
Be tough-minded, but tender-hearted, ?
| A．isn’t it | B．are you | C．aren’t you | D．will you |
—Jack, how did itthat you made so many mistakes in your homework?
—I myself haven’t figured it out yet!
| A．come about | B．bring about | C．turn down | D．get down |