下列各句中，没有语病的一句是（ ）

Although the doctor is claiming a major breakthrough in the fight against cancer, I am of his chances of curing the patients.

Some people think _______about their rightsthan they do about theirresponsibilities.

es, a new teacher, stood in front ofthe students, his body ________ with fear. 

Their life will be__________ if there are ____________children in a family.