帮我解答几道英语的语法题目,.1.people could not help( )the foolish emperor in the procession.A.laugh at B.to laugh at C.laughting at D.laughing on2.There was terrible noise ( )the sudden burst of light.A.followed B.following C.to be followed D.being followed3."cant not you read?"Mary said ( )to the notice.A.angrily pointing B.and point angrily C.angrily pointed D.and angrily pointing4.L must apologize for( )ahead of time .----That is all right.A.letting you not kno

帮我解答几道英语的语法题目,.
1.people could not help( )the foolish emperor in the procession.
A.laugh at B.to laugh at C.laughting at D.laughing on
2.There was terrible noise ( )the sudden burst of light.
A.followed B.following C.to be followed D.being followed
3."cant not you read?"Mary said ( )to the notice.
A.angrily pointing B.and point angrily C.angrily pointed D.and angrily pointing
4.L must apologize for( )ahead of time .----That is all right.
A.letting you not know B.not letting you know C.letting you know not D.letting not you know
5.You were brave enough to raise objections at the meeting.----Well,now l regret( )that.
A.to do B.to be doing C.to have done D.having done
6.Although punctrual himself ,the professor was quite used ( )late for his lecture.
A.to have students B.for students to be
C.for students' being
D.to students' being