They do have a different to the problem of overpopulation.
| A．solution | B．opinion | C．decision | D．conclusion |
In this section, we will briefly describe possible ways of reducing the costs and risks __________ in doing this.
| A．involving |
| B．involved |
| C．to involve |
| D．being involved |
__________ work has been done to improve people's living standard.
| A．Many |
| B．A great many |
| C．A great deal of |
| D．A large number of |
North Korea threatens to __________ from six-party talks aimed at ending North Korea's nuclear program unless its proper rights are to be satisfied.
| A．escape |
| B．flee |
| C．withdraw |
| D．retire |
I had great difficulty __________ the suitable food on the menu in that restaurant.
| A．find |
| B．found |
| C．to find |
| D．finding |
-Can I help you, Madam?
-Yes. I want a tie __________ for a man to wear at a formal party.
| A．flexible |
| B．aggressive |
| C．appropriate |
| D．illegal |