jack is s---.he is good at all his subjects at school.
jack's est friend went abroad three years ago.jack now m-----him a lot.his joke was very funny.it made all of us l----.mr liasked a difficult question,and all the students r-----silent.misswang is a good teacher.she is s----with her students.our teacher gives us a lot of s---- when we have problems.
訂 mr li asked a difficult question,and all the students r-----silent.【第二行有誤】‘-‘