动词填空

China has changed a lot since before．As we know, China 1 (be)a 2 (close)country．Nearly thirty years ago China 3 (open)her gate to the world and they 4 (hope)to be part of the world, especially in economy．China 5 (develop) very fast these years．In 2001, China joined the WTO．China 6 (become)much stronger and richer since entering the WTO．

However Chinese enterprises(企业)have met a lot of difficulties and challenge in having dealings(打交道)with foreign countries, and quite some of them7 (charge控告)for intellectual property disputes(知识产权纠纷)and dumping goods(倾销)．They have lost much benefit(利益)for that．Surely they 8 (meet)more challenges in future．They need 9 (improve)their product quality(产品质量)and intellectual property management．They also have to use weapons(武器)of laws to have dealings with foreign enterprises．A Chinese government official said that Chinese government 10  (help)the enterprises to solve such problems．

1、1.had been   2.closed   3.opened   4.hoped   5.have developed (or have been developing)

6.has become   7.have been charged   8.will not    9.to improve   10.would help