21/ I get tired of (stay) at home for my wife keeps (shout) at me all day. 22/ I can't help (sneeze); I caught a cold yesterday from (sit) in a draught. 23/ His doctor advised him (take) up (jog). 24/ I regret (inform) you that your application has been refused. 25/ People used to (make) fire by (rub) two sticks together. 26/ I tried (persuade) him (agree) with my proposal. 28/ He hates (answer) the phone, and very often just lets it (ring). 29/ They try their best (make) us (buy) the things we don't need. 30/ We object to his (go) out.