高中英语之主谓一致　单选题：）1.It is not i but you who____ the first to ru

高中英语之主谓一致　单选题：）
1.It is not i but you who____ the first to run to the goal in that competition.
A is B was C are D is going
2.There __ in this room
A are too many rooms B are too much room
C are plenty of rooms D is plenty of room
3.What they have done ___ of great use to us.What he says and what he does____agree.
A.is not B is ,do not C are ,does not D are,not
4.It is this teacher who____ leaving for London.It is you who___ next.
Aare are B is are C are is Dis is
5.Besides Xiao Wang,Wiao Ma _____ willing to do the work.The factory,including its machines _____ burnt last night.
A.was; is B.were; is C.was; are D.were; are
希望有详尽的解析!…　先谢谢各位的仗义回答了!…