since china has entered the WTO ,the_____ on foreign businesses will gradually be reduced.(accessible ;available ;extend; explore; interaction ;opportunity; restriction; project; register; exchange )从括号中选单词；并用适当的形式

Jim has made many friends since he ___to china. nancy has been in china since last year错在哪儿 Tom has been at this school since he come to China.对since he come to China提问. Jim has made many friend since he___to China.A.cameB.comesC.has come Mr Smith has worked in this factory since he ( )to China A.has moved B.moved Since 1920,the population of China has doubled.(对画线部分提问,画线部分是Since 1920 for ;since的用法He has been away from China ____three years ago.A.inB./C.for D.since Jim has made many friends since he ____to China,Acame Bcomes Chas come Dwill come China’s Project Hope has s 1 more than 2.5 million poor students since it 翻译 mr.black ___(live) in China since five years ago能用has been living Mr Green has got u_ to the lifestyle here since he came to China last year Tom has changed a lot since he come to China.怎么提问? 谁知道英语题：China has developed[ ]since 1978[rapid]用正确形式填 My sister has been working ()western China since graduated.A:at B:in C:on D Mr white has been in China since 2000.（变为同义句）Mr white _______to China _______ 2000. How many times has China participated in World Expo since Peopie's Re public of China was founded? How long has Mr.White been a member of Greener China since he came to China?的翻译? China has developed..since 1978 and has made great progress in many fieldsA.rapidlyB.slowlyC.hard.China has developed.since 1978 and has made great progress in many fieldsA.rapidlyB.slowlyC.hard.