英语语法习题能否解释以下习题:1．Neither Tom nor his parents --- at home.A.i

英语语法习题
能否解释以下习题:
1．Neither Tom nor his parents ___ at home.
A.is B.are C.has been D.was
这题为何要选B
2.All that can be done ____.
A.has been done B.has done.C.have done D.were done
这题为何要选A
3.There __ in this room.
A.are too much furniture.B.are too many furnitures
C.are too much furnitures D.is too much furniture
这题为何要选D
4.Many a student ___ the importance of learning a foreign language.
A.have realized B.has realized
C.have been realized D.has been realized
这题为何要选B
5.The number of students of our school ___.
A.are increasing B.is increasing
C.have increased D.have been increased
这题为何要选B
6.Tom is the only of the staff members who ___ to be promoted.
A.is going B.are going C.was D.were
这题为何要选A
7.Two plus three ___ five.
A.were B.was C.makes D.will make
这题为何要选C
8.The signer and dancer ___ come to our colleage.
A.were B.was C.have D.has
这题为何要选D