Neither English nor Chinese ________ difficult to learn.
A、hasC
neither…nor…是固定搭配，意思是：既不……也不……。它需要遵循就近原则，谓语动词应与Chinese一致，所以答案是C。
______ are the primary destinations for the Chinese at present.
As for family education, parents are encouraged to rely on ________ rather than punishment.
Poor speaker of English though he was at the time, he still managed to make himself ________.
The policeman came up to the lonely house with the door _______, _______ there for a while and then entered it.
______ is recognized as the national flag-carrier.
