He has been to America twice, _____.A.so have IB.so I haveC.I have soD.so did I
参考答案:
______, Franks never seems to be able to do the work satisfa..
______, Franks never seems to be able to do the work satisfactorily. [ ]A. As hard he triesB. Try hard as he mightC. As hard as he triesD. Try as hard as he might
Only when _______ possible to settle the problem.A.does the..
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