Although the first part of the book is easy， the rest ______.
| A．are difficult | B．has proved difficult |
| C．is supposed difficult | D．have been found difficult |
- How can we reduce the chances of offending the locals while traveling, Professor?
- ______ the local customs and rules, I think.
| A．Observe |
| B．Approve |
| C．Support |
| D．Deliver |
Is it ______ sparing some time for your hobby while your classmates are concentrating on their lessons?
| A．worth |
| B．worthy |
| C．worthwhile |
| D．valuable |
When I was studying in England last year, my host family______toward me like my own relatives.
| A．treated |
| B．behaved |
| C．served |
| D．regarded |
I congratulate them on their outstanding performance and great ______.
| A．condition |
| B．achievement |
| C．situation |
| D．activity |
He is frank and ______ and ______ never beats about the bush.
| A．easy-going |
| B．stubborn |
| C．outspoken |
| D．cheerful |