The schoolgirls problem happened when she _____.

The students may have _____ if they often become worried or have trouble getting on with others.

　　A. no parents

　　B. no secrets

　　C. no memories

　　D. mental problems

　　A.cheap

　　B.cheaper

　　C.cheapest

　　D.the cheapest

　　A.may； mustnt

　　B.must； may not

　　C.must； cant

　　D.can； may not

　　A. How interesting

　　B.How an interesting

　　C.What interesting

　　D. What an interesting

　　A.which

　　B.where

　　C.in which

　　D.from which

　　A. too much difficult

　　B.too more difficult

　　C.much too difficult

　　D.more too difficult