—Look out, there is a bus ahead.
—Oh, dear, _________
| A．I am not noticing it | B．I haven’t noticed it | C．I wasn’t noticing it | D．I had not noticed it |
Tom has _____ good knowledge of English and this will improve his chance of finding _____ proper job.
| A．a; the | B．a; a | C．/; a | D．/; the |
In many countries, some scientists are already _______ research in order to produce a cloned human baby.
| A．putting up with | B．coming up with |
| C．putting forward | D．pushing ahead with |
Edward, you play so well, but I you played the piano.
| A．don’t know | B．hadn’t know | C．didn’t know | D．haven’t known |
People often have this belief ______ development is bad for the environment, but this does not have to be true.
| A．that | B．which | C．where | D．how |
If we ______ the other road, we might have arrived here in time for the meeting.
| A．take | B．had taken | C．took | D．have taken |