youspend a lot of time looking for the lost child—________. It took us half a month, butluckily we found him.

Though I ______ the phone number many times, the foreigner still couldn’t write it down.

Mrs.Smith finds it hard to clear up the mess，as her children are always ________ whenever she tries to. (2013·福建，29)

What _____ did you do last night?— Nothing[ ]

People usually like the TV channels with funnier programs but ______ advertisements.