They give me a piece of advice _____ the passport ________ with me at all times.
| A．that, be carried | B．that, must be carried |
| C．which, should be carried | D．which, is carried |
—Hi, Mr．Brown! May I pick a flower in the park?
—_______.
| A．No, you don’t | B．No, you mustn’t |
| C．No, go ahead | D．Yes, you could |
This problem is said _______ three times, but he still can’t understand it.
| A．to have been explaining | B．to have explained |
| C．having been explained | D．to have been explained |
---I heard that you made a bicycle trip to the 2010 World Expo of Shanghai alone.
---No. Actually, my friend Bob ________ me.
| A．accompanied | B．conducted |
| C．instructed | D．received |
I went the village yesterday_________ to see my uncle, who lived there for 20 years.
| A．special | B．especially | C．specially | D．especial |
The problem of the present world is that those who are imaginative have little experience_________those who are experienced have weak imagination.
| A．unless | B．although | C．because | D．while |