[单选题,1.3分] His income is double _____ it was five years ago.

[单选题,1.3分] Oh, how beautiful it is! I like _____ better.

[单选题,1.3分] I left my pen on the desk and now it’s gone; who ________ it?

[单选题,1.3分] I ________ your last point — could you say it again?

单选题,9分] Scientists say it may be five or ten years _______ it is possible to test this medicine on human patients.

__________ is the act performed by or resulting from saying something; it is the consequence of, or the change brought about by the utterance.

When a dog is barking, you assume it is barking for something or at someone that exists hear and now It couldn’t be sorrowful for some lost love or lost bone This indicates the design feature of __________

Duty is an act or a course of action that people __________you to take by social customs, law or religion.

Project ______is an uncertain event or condition that，if it occurs，has a positive or a negative effect on at least one project objective，such as time，cost，scope，or quality．

It is generally considered unwise to give a child___( )_____ he or she wants.

 ______ twice a year, whether it is a car or a bus or a truck, is the rule that every driver must obey in this city.

I think you should end it ______ it is too late, or you will be sorry for it.