Choose the sentence that best combines each pair of sentences.

You'd better call him immediately. It's possible he'll leave for Paris.

Vaccines are only given after recovering from diseases caused by viruses.

Vaccines are used as a cure for diseases caused by viruses.

Vaccines are ineffective against diseases caused by viruses.

Vaccines are necessary to prevent people from a disease caused by viruses.

Tri is committed to maintaining a healthy lifestyle, so he avoids processed foods and prioritises nutritious meals.

Tri is committed to maintaining a healthy lifestyle, but he avoids processed foods and prioritises nutritious meals.

Tri is committed to maintaining a healthy lifestyle; however, he avoids processed foods and prioritises nutritious meals.

Tri is committed to maintaining a healthy lifestyle, so he didn't avoid processed foods and prioritise nutritious meals.

Doing exercise regularly helps you stay healthy.

Doing exercise regularly help you stay healthy.

Do exercise regularly helps you stay healthy.

Doing exercise regularly helps you are stay healthy.

We need calories or energy do things every day.

We need calories or energy doing things every day.

We needs calories or energy do things every day.

We need calories or energy to do things every day.

We should balance calories we get from food with calories we use physical activity.

We should balance calories we get from food with calories we use for physical activity.

We should be balancing calories we get from food with calories we use physical activity.

We should be balanced calories we get from food with calories we use to physical activity.

I have often spoken to her for the last ten years.

About ten years ago, I used to speak to her.

The last time when I spoke to her was ten years ago.

I spoke to her ten years ago and will never speak to her again.

The next time I go bowling will be in 6 years.

I won't go bowling for 6 years.

I haven't gone bowling for 6 years.

I went bowling for 6 years.