看一下下面这些句子填be动词时填什么好.请说明理由.Halfofthefruit___bad(is/was)There___adeskandthreechairshere.Hethinksmaths____verydiffcult.Look,there____somuchrainhere!_____thereanypeopleintheroomlastnight?T

　　看一下下面这些句子填be动词时填什么好.请说明理由.

　　Halfofthefruit___bad(is/was)

　　There___adeskandthreechairshere.

　　Hethinksmaths____verydiffcult.

　　Look,there____somuchrainhere!

　　_____thereanypeopleintheroomlastnight?

　　TomandMike'sbedroom_____verysmall.

　　AllthestudentsknowParis_______thecapitalofFrance.

　　Thebooksofhisaunt's______abitexpensive.

　　Tom'sparents_______doctors.

　　Thispairofglasses______toobigforme.