Nowadays, if people don't want to cook, they can choose to eat out, but they are asked ______waste any food.
| A．not to | B．not |
| C．to | D．don't |
Frank often wears a mask ________he can keep fit in the foggy and hazy (霾) weather.
| A．only if | B．until | C．so that | D．even though |
Poor Tim is too nervous to start his speech. Someone should remind him________.
| A．how to talk | B．whether to speak | C．what to say | D．when to tell |
Make a list of the things you want to buy. ________, you will surely forget some of them.
| A．Anyway | B．However | C．Otherwise | D．Therefore |
— Excuse me. Would you mind my using your dictionary for a short time? —________.
| A．No, you can’t. | B．It’s my pleasure. | C．Yes, please. | D．Not at all. Help yourself. |
― How was your weekend?
―________
| A．It was good. |
| B．I'd like to visit my uncle for this weekend. |
| C．The same to you! |
| D．I used to spend my weekend in the countryside. |