Which sentence uses the underlined vocabulary word incorrectly?
a. while cheating may your grades, it always has a deleterious effect upon your character.
b. he was able to buy hot dogs and a prodigious popcorn at the ball game.
c. his forward to the book was a judicious mix of praise and critical observation.

While cheating may help your grades  it always has a harmful effect upon your character

he wasn't able to buy hotdogs and an extraordinary in size popcorn at the ball game.

His forward to be book was a wise mix of praise and critical observation.

I think B 

You had better come back tomorrow

It seemed like he was warming up.

The musician's performance was admirable

It is dangerous crossing the railway lines to get to the station

No sooner had the guest arrived that we stood up.

Having fractured his leg, Satish's doctor forbade him to go out.

"Have dinner with me on Sunday," she invited us.

People say he had been in the Indian army