Not until _____,_______the diffiult prob
题型:选择题
问题:
Not until _____,_______the diffiult problem.
A.did he return;we settled
B.he returned;we settled
C.did he return,did we settle
D.he returned;did we settle.
Not until _____,_______the diffiult problem.
A.did he return;we settled
B.he returned;we settled
C.did he return,did we settle
D.he returned;did we settle.