The twin___________work hard at lessons.We must help them.A

The twin___________work hard at lessons.We must help them.A -----a student,you must study hard at your lessons We must help them? We must study English hard to help make the Olympics a s---- As students we must work hard our lessons.We （）of the students work hard at their lessons.A.Many B.Much We must study English hard to help make the ShangHai World E We should study hard at school.We should help the persons ar the student work hard at their lessons.的意思 we work hard at our lessons when we are at school什么意思? We must do our ____ to help them 填什么 英语语法we must help them out of danger