The student are busy___their lessons these days.(review)

The student are busy___their lessons these days.(review) Sissi are busy ( ) she lessons these days 填空 Are these the children?Their teahers are giving them lessons are the animals happy these days? we are busy ( )our lessons these days.a ,prepare!b,preparing The workers are ()(wide) the narrow street these days The teachers are busy preparing the exams these days . 我来问英语填空we are b___ reviewing lessons these days.据所给首字母填空 The student are t___ after doing these things. are the animals happy these days?怎样回答 the animals are not so happy these days. these days the cities in china are getting bigge