用may或must填空.（以下是题目）Hebeanewstudent.Iamnotsure.Hehavebeentired.Iamnotsure.Iamsure.Sallyhavebeenreadingathome.Lilybewatchingtelevisionnow.Iamsure.---Wherewillyougothissu

Question

用may或must填空.（以下是题目）
He ______ be a new student.I am not sure.
He ______ have been tired.I am not sure.
I am sure.Sally _______ have been reading at home.
Lily _______ be watching television now.I am sure.
---Where will you go this summer?---I ________ go to Xi'an.I haven't decided yet.

Answer 1

首先,may：可能,或许.表示猜测,推测；must：一定,必须.表示肯定,确定
其次,I am sure.我确定!；I am not sure.我不确定.
第一个空may根据语境即可：他可能是个新生,我不太确定.注：因为不确定,所以应该是猜测
1、may；2、may；3、must；4must、；5may
其他略,主要根据语境,如果特定语境有特殊要求那就不需要分析,直接填就行.