⑥Neither of the novels which ___ popular with us ____ been translated into Chinese.
A.is;have B.are;have C.are;has
⑦-Have you worked out the puzzle?- No,though many a way ____ tried.
A.has B.has been C.have
⑧The United States ____ one of the most developed contries inthe world.
A.is B.are C.was
⑨There is no one speaking at the meeting.____ still a problem..
A.What to do are B.How to do it is C.How to di is
⑪Ten kilometers ___ way.So you'd better go there by bus.
A.is quite a long B.are quite long C.is a quite long