he is very poor.he can't get enough food.把它合并为一句

he is poor .he si very happy.合并一句 The problem is very difficult.He can't work it out.(合并为一句） This bag is very heavy.he can't carry it.(合并为一句） This bag is very heavy. he can't carry it.(合并为一句） This bag is very heavy.he can't carry it.(合并为一句） He is old enough .He can go to school .(合并为一句) he is old __ He is very young.He can't go to school.合并一句:He is't () ()to 1.He is very old.He can go to school.（合并为一句） He can work out the problem.He is very clever.(合并为一句） The boy is very young .So he can't go to school.(合并为一句） He is young.He can't go to school.(合并为一句） He is ____young __ My brother is young.He can't write his name.(合并为一句)