By the time these books were published, he _____ addicted to them.
| A．had become | B．becomes | C．has become | D．became |
She asked if any of the passengers knew _____ about machines or at least how to drive a car.
| A．anything | B．something | C．nothing | D．all |
We all think that he is stronger _____.
| A．than he is looked | B．than he looks like |
| C．than he looks | D．than he looked like |
____ the weather was fine, I opened all the windows.
| A．Now that | B．Since that | C．Because of | D．For |
The blueprint is to the builder _____ the outline is to the writer.
| A．what | B．that | C．as | D．and |
He has an expression of resentment, _____ Martin had made a fool of him.
| A．as | B．as though | C．though | D．even though |