Immersed in their experiment, they had no idea what happened just outside their lab.

[单选题]A crowd [gathered]to see what had happened.A.collectedB.fixedC.dividedD.ass

[单选题]I did not fully [comprehend]what had happened.A.approveB.understandC.apprec

[单选题]The headmaster came to the classroom and asked______what had happened.A.his

[单选题]At that time,wedid not fully [grasp] the significance of what had happened.

[单选题]Whathesaidjustnowhadlittletodowiththequestion________discussion.A．)onB)inC)underD)at

[单选题]Everybody on[board] was worried and we were curious to find out what had ha

[问答题]My idea is thatthis experiment should be stopped.

[单选题]What happened to George and Richard in the end?A． Both George and Richard became millionaires.B． Both of them realized their original ambitions.C． George established a successful business while Richard was missing.D． Richard became a millionaire whil

[单选题]Tom shut everyone out of the lab ____________ out the physical experiment.A

[单选题]28． What has happened to students these years according to the passage?A． The students don't have to think anymore．n school．B． The students use calculators in math class．C．The students used to walk to school，but now they don't．D．All of the above．