Last summer I took a course on ______ poisonous gases.
| A．what to deal with | B． how to deal with |
| C．what to be dealt with | D． how to be dealt with |
Invention can be ________ as it may suddenly begin just by noticing something usual.
| A．accidental | B．careless |
| C．necessary | D．imaginative |
—You don't seem to be quite yourself today. What's wrong?
—Oh, I'm suffering from a cold. Nothing serious, ________.
| A．yet | B．though |
| C．indeed | D．anyhow |
—How do you like your new roommate?
—He is too ________. He never shares his snacks with me.
| A．mean | B．generous |
| C．unfair | D．cruel |
—I watch I Am a Singer every Friday night.
—Me too. I have never seen a ________ entertainment program.
| A．best | B．better |
| C．worst | D．worse |
Nowadays, basic health care services are ________ to almost all the Chinese people. This accounts for the fact that the average life expectancy of the Chinese has already risen to 75.
| A．attractive | B．accessible |
| C．abundant | D．accurate |