The engineers spent the whole night（work) ___________on the new device.

that most people （7) ............the dayA.spendB.spendingC.spent

A．She spent most of her time under the sea.B．She spent most of her time lying in the s

______the diagram shows, the sum spent on tobacco is nearly as large as that spent on alco

He （) in the laboratory the whole morning.

The last paragraph concludes the whole writing by

The engineers in this lab spent several weeks _______ their plans for the new bicycleA.cou