Einstein, life had once beenvery hard, was given the Nobel Prize for physics in 1921

had taken such effective ______much earlier, the river would not bepolluted soseriously now.

Does your Dad quit smoking, Jenny?— Yes, but he ____ for almost ten years[ ]

While shopping, people sometimes can’t help_____ into buying something they don’t really need. [ ]

There must be ________ with the computer.