根据句意和首字母,写出各单词的正确形式。
小题1:The teacher says I have to learn grammar again because I always make m ___ in grammar.
小题2:Much of the village is c by snow.
小题3:This problem is very difficult. He can not solve it e_______.
小题4:You will fail your next exam u________ you start to work at your studies now.
小题5:I think he will work out the problem, because he is quite a p person.