More highways have been built in China, ___________it much easier for people to travel form one place to another.　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　

A. making　　 B. made　　　 C. to make　 D. having made

The speaker raised his voice but still couldn't make himself ____.

A．hear

B．to hear

C．hearing

D．heard

She knew nothing about his journey _______ he was likely to be away for three months.

A. Except                                                 B. except for

C. except that                                           D. in addition

We offered him our congratulations　　 his passing the college entrance exams.

A、at　　 B、on　　 C、for　　 D、of

By nine o’clock，all the Olympic torch bearers had reached the top of Mount Qomolangma，

　　 appeared a rare rainbow soon.

A.of which　　　 B.on which　　　　　 C.from which　　　　 D.above which

_____, he cannot solve the word puzzle.

A. Hard although he tried　　　　 B. He tried hard although

C. However hard he tried　　　　 D. As he tried hard

Diets are most effective when c ______ with exercise.