1、He sat at the table ,_____ to answer the students' questions.A,prepared B,preparing C,was preparing D ,both A and B 2、You have not yet answered my question _____ I can jion the party tonight.A,whether B,if C,which D,that 3、—What are you going to do next?—To write a science story about outer space ____ by Science and Technology Press.A,published B,being published C,to be published D,publishing 4、The country has already sent yp three unmanned spacecraft ,the most recent _____ at the end of last March.A,has been launched B ,having been launched C,being launched D,to be launched 5、Good use should be ____ in class.A,make of B making of C ,made of D,of 6、No decision ____ about any future appointment until all the candidates have been interviewed.A,will be made B,is made C ,is being made D,has been made 7、 —Did he give it up and settle for something else —No .______,he wrote two famous papers.A,However B ,Instead C ,Therefore C ,And