与东盟五国相比，中国在石油等能源密集型产业不具有比较优势，而且比较劣势越来越明显；在电子通讯等资本和技术密集型产业的比较劣势在逐年消失，而且相对于个别国家开始具有比较优势；在农产品和服装加工等劳动密集型产业具有较强的比较优势，但这一优势开始受到挑战。面对上述情况，中国应该：
①投资东盟地区的石油产业，满足自身能源需求
②提高自主创新能力，大力发展技术密集型产业
③采取措施降低劳动力成本，维持制造业竞争优势
④减少农产品生产，增加从粮食生产大国的进口
| A．①② | B．②③ | C．①④ | D．③④ |
I don’t allow you ________ so high a mountain.
| A．to risk going | B．risking to go | C．going to risk | D．risk going |
The old man was telling a funny story, surrounded by many kids, _________ with fascination.
| A．all of whom listened | B．all of whom listening |
| C．all of them listened | D．all of them were listening |
With everything ________, he felt tired but happy.
| A．to do | B．done | C．had been done | D．to be done |
I am sorry to have you ________ so long.
| A．waited | B．to wait | C．waiting | D．to be waiting |
The ______news made him feel _______.
| A．upset; upset | B．upsetting; upset |
| C．upset; upsetting | D．upsetting; upsetting |