The old scientist devoted most of his time ___________ the space science.

A. develop           B. to developing   C. to develop              D. developing

 _________good advice! It’s so helpful to us.

        A. How              B. How a          C. What          D. What a

—Mary was heard_______ just now. What happened?

—John was telling a joke.

　　　 A. cry　　　　 　 B. to cry　　 　　 C. laugh　　　 　 D. to laugh

 Even if we are very busy, we should spend ______ doing exercise every day.

        A. some time     B. sometime      C. sometimes              D. some times

—Is your father a teacher?

—Well, he _______.

A. used to        B. was used to          C. used to be     D. is used to be

 _________ the people lost their lives in the traffic accident. 

A. Three hundred                           B. Three hundred of        

C. Three hundreds of                            D. Hundred of

 I have _______ much work to do _______ I have no time to go out with you.

A. such; that    B. so; that        C. so; as          D. such; as

 I hope my father____ ask me about my marks.

A. not             B. not to          C. won’t          D. don’t

 At the foot of the hill you could hear nothing but the ________ of the running water.

A. shout            B. noise            C. voice           D. sound

 It’s five years _____ our teacher came to Jiangyan.

              A. since                B. when                C. although          D. if