阅读理解。 In the forest, there is an elephant and a monkey. They're friends. But one day they want to know who is stronger (更强壮). One of them says, 'Who can get apples over there, who is stronger.' There's a river over there. The monkey says, 'I can't swim. 'The elephant says, 'I can swim. Please sit on my back. 'They go across the river. The apple trees are very high. The elephant can't reach (够着) the apples. The monkey climbs (爬) up the tree and gets many apples. Now they know they should help each other. 1. The elephant and the monkey want to know______. A. who is smarter B. who is higher C. who can swim D. who is stronger 2. ______ can't swim. A. The elephant B. The monkey C. The big animals D. The small animals 3. ______ can't reach the apples. A. The elephant B. The monkey C. The high animals D. The short animals 4. At last the monkey goes across the river with the help of______. A. the elephant B. the monkey C. an animal D. a boat 5. From the story we know that______. A. we should learn from the elephant B. we should learn from the monkey C. A and B D. we should help each other