(Who, Whom) should I say is calling?

I need to make (fewer, less) mistakes.

We need to (by, buy, bye) some milk.

I want to go, (two, to, too).

That is made of (lead, led).

Put the box over (their, there, they’re).

She (lead, led) the children in a song.

I know you (can, may) do it all by yourself.

(Your, You’re) going to be late.

The meteorologist spoke about the hurricane (then, than) he spoke about the winds.

The meteorologist said the hurricane was worse (then, than) the tornados.

The toy has lost (its, it’s) batteries.

(Their, There, They’re) going to be here soon.

My brother was the only one (who, that) won the trophy.

She was so excited about the game, she (can't hardly, can hardly) wait!

I needed (farther, further) instruction in order t understand my work.

Everyone (except, accept) Timothy, were allowed to go to the gym.

There are (a lot, allot) of questions on the test.

He will (a lot, allot) 10 minutes per question.