–We should do what we can _____ the endangered animals.`
--Yes, it’s duty_____ them.
| A．save, to protect | B．save, protect |
| C．to save, protect | D．to save, to protect |
He was late this morning，because the bus was too________for him to get on．
| A．quiet |
| B．tidy |
| C．crowded |
| D．noisy |
—Hello，may I speak to John，please？
—________
| A．Who are you？ |
| B．What’s the matter？ |
| C．This is John speaking． |
| D．He is John． |
—Hello，who’s that speaking？
—________
| A．That is Jane． |
| B．This is Kangkang speaking． |
| C．I’m Mike． |
| D．She is Maria． |
—________
—It’s sunny today．
| A．How was the weather yesterday？ |
| B．How are you doing？ |
| C．What fine weather！ |
| D．What’s the weather like today？ |
—May I speak to Mr Wang？
—Sorry．He________a speech now．Please call later．
| A．gives |
| B．gave |
| C．will give |
| D．is giving |