`19.` In case you may get hungry on the train you’d better take some sandwiches.
`20.` if my husband had left the keys, i could have picked him up at the station.
`21.` bill doubted if john would come.
`22.` our dog bit the postman.
`23.` the fog prevented us from driving.
`24.` in spite of his broken leg, he managed to get out of the car.
`25.` it was such a hard cake that i couldn't eat it.
`26.` if it hadn't rained, we would have gone.
`27.` my mother cook better than me.
`28.` do you happen to have change for a pound.
`29.` he didn't win the race.
`30.` it's hours since Mary rang.
`31.` i wish i had finished my homework last night.
`32.` "how did you like your new dress?" she asked Michael
`33.` there is a train that leaves at eight o'clock every morning
`34` it can'tne denied that she has a beatiful voice
`35` do you mind helping me to put the chairs away
`36` unless somebody sends the child for a doctor, he will die
`37` he'd rather you paid him immediately
`38` the water wasn't warm enough for the children to swim in it
`39` she had someone repair her car
`40` you've got to see the manager tomorrow morning