完形填空（共20小题，每小题1.5分，满分30分）
The science teacher believed very strongly in practical work as a means of teaching science effectively, and she wanted her pupils' parents to see how well their children were learning ___36___ her methods. She therefore arranged for all the parents ___37___ and see the results of one of the ___38___ experiments on a Saturday evening,___39___ all of them were free. The children had been studying the growth of plants, and they ___40___ four pots of beans a few weeks before.  They had put poor soil in one pot, to see ___41___ effect this would have ___42___ the growth of the beans in ___43___,and good soil in ___44___ three pots. Then they had put one of the ___45___ in the dark for several days, and had given ___46___ pot no water for the same length of time.
　　At the end of the lesson on Friday afternoon, the teacher put little ___47___ on the four pots:‘The beans in this pot were planted in poor soil.’‘This pot　___48___ in the dark for four days.’‘These beans have had no water for four days.’‘These beans have had good soil, plenty of light and ___49___  water.’ Then the teacher went home.
　When she arrived on ___50___ evening, half an hour before the ___51___were due to come, she found this note beside the pots:‘We read your notes  ___52___ the school servant and thought we would help him, so we watered all the plants, changed the earth in the one with ___53___ soil, and ___54___ the light on above the one that had been left in the dark for four days. We hope that the plants will now grow___ 55___.’
　　Your friends,
‘The Boy Scouts.’ 

A．by B．with C．in D．through

A．come B．came C．to come D．coming

A．child B．children C．child's D．children's

A．when B．as C．because D．since

A．have planted B．had planted C．planted D．had been planted

A．how B．what C．which D．why

A．in B．on C．for D．with

A．them B．that C．it D．one

A．the other B．an other C．Other D．others

A．beans B．soil C．plants D．pots

A．a third B．the third C．a fourth D．the fourth

A．notes B．messages C．notices D．announcements

A．had been kept B．has been kept C．had been remained D．has been remained

A．no B．some C．much D．regular

A．Friday B．Saturday C．Sunday D．Monday

A．children B．students C．parents D．teachers

A．to B．for C．from D．on

A．good B．wet C．dry D．poor

A．left B．leave C．kept D．keep

A．well B．strong C．better D．good