Only when _______ possible to settle the problem.A.does the editor come will it beB.the editor comes will it be C.has the editor come it will beD.the editor comes it will be
参考答案:
Only by practicing every day ___________ English well.A.can..
Only by practicing every day ___________ English well.A.can we learnB.we can learnC.did we learnD.learn we