-- Sir, could you please wait for another 20 minutes and we’ll serve you very soon.
-- Another 20 minutes? It was only 6 o’clock ________ I got here, but it’s 7∶10 now.
| A．since | B．when | C．that | D．before |
My new pen ______. Who ______ have taken it?
| A．has been disappeared; can | B．has disappeared; could |
| C．is missing; should | D．has been lost; may |
— Can I smoke here?
— Sorry. We don’t allow ______ here.
| A．people smoking | B．people smoke | C．to smoke | D．smoking |
— Where is my dictionary?
— You ______ it in the wrong place.
| A．must | B．should have put | C．might put | D．might have put |
She spends her money______ books ______ on clothes.
| A．on; instead | B．in; instead |
| C．in; more than | D．on; rather than |
— David hasn’t come yet.
—I think he will ______ soon, for he means what he says.
| A．turn on | B．turn off | C．turn down | D．turn up |