In the Spring Festival, Jonny sent each of his classmates a card with best wishes, but he received ________.
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We________on this project for four hours.Let's have a rest.
| A．are working | B．have been working |
| C．worked | D．had worked |
Tom________tell the truth to his boss because he didn't want to make trouble.
| A．daren't to | B．dare to | C．dared not | D．dare |
Our boss is very ________，so we have to arrive on time，or we would be fined.
| A．serious | B．strict | C．energetic | D．organized |
Mark was afraid of being scolded，so he________say what he thought to his parents.
| A．dare not to | B．doesn't dare to |
| C．dared not to | D．didn't dare to |
The audience waited in________silence while their aged speaker searched among his notes for the figures he could not remember.
| A．respective | B．respect | C．respectful | D．respectable |