Johnsonwas________unknownbeforerunningforthepresidency.
D
A 显然，明显地 B 外表上，直观地 C 垂直地，直立地 D 实际上，事实上
A linguistic theory is constructed about what ______ is and how it works.
_______forthefreeticket,Iwouldnothavegonetoseefilmsooften.
There is a deadlock(僵局) in the discussion when neither side gives ________ to the other.
Theoldcouplehavebeenmarriedfor40yearsandneveronce_______witheachother.