can:表示“可能,会”,多用于否定和疑问句
must:表推测时must语气很肯定,指“一定,必定”,只用于肯定句中.“must + 动词原形”表示对现在情况的推测.
因为 这个句子是肯定句
所以选 must
you ____ study hard if you want to get good grades in englis
5个回答
相关问题
-
You must study hard if you want to get good grades in Englis
-
You _______ study hard if you want to get good grades in Eng
-
If you don't study hard,rather than you'll get good grades.
-
Study hard,and you can get good (grade) in the exams.
-
if you work hard,you will s---- in getting good grades.填什么?
-
____you study, ____grade you will get. A．Hard, good B．The ha
-
1.If you study hard,you will get good marks.
-
C___ your exam paper carefully if you want to get good grade
-
( )good grades,you should study hard.A Getting B Get C For g
-
If you study harder,you will get good grades.改为同义句