Scientists say it may be five or six years ____ it is possib
Scientists say it may be five or six years ____ it is possible to test this medicine on human patients. A.before B.after C.since D.when 这种before 和when还有after老搞不清楚,怎么区别选择? 答案不是B,C额,老选不对这类题目
给你造三个句子,希望能帮你理解。After the war , many people lost their homes. When you grow up you can choose any job you want. I wont get the points before you accept my answer.