介词填空。(in,of,at,on,for)(20分)
(1)I'm looking__________my pen.
(2)Peter lives__________Shanghai with his parents.
(3)It's a map__________Italy.
(4)We are going swimming __________ weekends.
(5)Look __________ these animals.
根据汉语,补全句子。(30分)
(1)我们应该保持水清洁。
We________ ________ the water________.
(2)当我们离开房间时, 请关灯。
Please________ ________ the lights when we ________the________.
(3)我们不应该把水弄脏。
We________ make the water________.
(4)请照顾小孩。
Please________ ________ ________ the children.
(5)我们应该种更多的树。
We________ ________ ________trees.