1.

It didn't rain as much in June as it did in May.

rained

In May    it did in June.

2.

In Rio, it doesn't matter how long they dance - the carnival performers never get tired.

however

In Rio,  , the carnival performers never get tired.

3.

The other actors objected to working with her because she always forgot her words.

refused

If she had remembered her words, the other actors    work with her.

4.

Ghosts and spirits don't frighten me.

afraid

I    ghosts and spirits.

5.

Arguing with the boss isn't a good idea.

better

You    with the boss.

6.

The magician promised that after a kiss from the princess the frog would become
a prince.

provided

The magician promised that the frog would become a prince    him.

7.

The bad weather is destroying the young fruit trees.

by

The young fruit trees    the bad weather.

8.

She wears dark glasses so that the sun won't hurt her eyes.

prevent

She wears dark glasses to    her eyes.

9.

Don't blame me if the car won't start.

my

It    if the car won't start.

10.

The security guard accused him of stealing something.

stolen

'You    you?' said the security guard.