Few weight-loss pills can help to keep people slim, __________?
| A．do they | B．don’t they | C．can’t they | D．can they |
The manager along with his workers _______ day and night to complete the project.
| A．have worked | B．work | C．is working | D．are working |
After a short ________, I got my bag from the thief’s hand successfully.
| A．exchange | B．explanation | C．encouragement | D．Struggle |
The most important thing ______ we should consider is the first idea _____ he has mentioned in the speech.
| A．which; that | B．that; which | C．which; which | D．that; that |
He was so pleased with all _____ we had done for him _____ he wrote us a letter to praise us for it.
| A．that; that | B．what; that | C．that; what | D．what; what |
--- Is it convenient to you if I call you up at 9 o’clock tomorrow morning?
--- I’m afraid not. I _________ a speech then.
| A．was giving | B．will be giving | C．am giving | D．will have given |