时，要用does构成一般疑问句。如：r
Doesshegotoworkbybiker
YesshedoesNoshedoes
tr
动词s的变化规则r
1．一般情况下，直接加s，如：cookcooksmilkmilksr
2．以sxshcho结尾，加es，如：guessguesseswashwasheswatchwatchesgogoesr
3．以