How did the man know Judy?A.They were in the same math class B.They were in the same high school C.He sat in front of Judy in math class D.He met her in a party 请帮忙给出正确答案和分析,谢谢!
According to the context, what does "your own biology " mean in the last paragraph?A.Your current major B.Your preference C.Your future research D.Your future job 请帮忙给出正确答案和分析,谢谢!
It was essential that all the equipment______back before the factory went into operation A.be sentB.must be sentC.were sentD.would be sent请帮忙给出正确答案和分析,谢谢!