Had I known about this computer program,a hugeamount of time and energy ______. [ ]

Can we ask David for help一Sorry. He is________ old to do anything.

the paint is starting to come off ____ the wallis damp—Well, we’d better have the wall repainted some day

The driver wanted to park his car near the roadside but was asked by the police ________．

The position, however, ________ you are applying, is not quite a well­paid one.