1.

He has been a reporter for five years.

first

He    five years ago.

2.

The fishermen went out to sea because there wasn't any warning about a storm.

forecast

If a  , the fishermen wouldn't have gone
out to sea.

3.

With heart disease, prevention is often less difficult than cure.

prevent

It is often    than to cure it.

4.

The astronaut had a cold, so they wouldn't let her go on the flight.

allowed

If the astronaut hadn't had a cold, she   
go on the flight.

5.

The President read the report before he made a decision.

decide

The President didn't    read the report.

6.

The police photographed the scene, and then they looked for fingerprints.

photographs

After they    the scene, the police looked
for fingerprints.

7.

Without an interesting headline, people won't read the article.

headline

If the article  , people would read it.

8.

I won't vote for that party because of the financial scandal last year.

there

If    a financial scandal last year, I'd vote
for that party.

9.

The rescuers couldn't get to the injured people until the hurricane had ended.

over

It wasn't    that the rescuers could get to
the injured people.

10.

'By the end of next year, inflation will be down to 3%', the minister said.

following

The minister promised that by the end of   
be down to 3%.