1. I felt regretful when I missed our camping trip last week.

=> I wish I hadn't missed our camping trip last week.

2. We spent 2 years training to be a flight attendent.

=> It took us 2 years to train to be a flight attendent. 

3. "Let's go fishing this afternoon" said Robbie

=> Robbie suggested going fishing thí afternoon.

4. Japan is a country. About 1.500 earthquakes occured in this country every year (where)

=>Japan is a country where about 1.500 earthquakes occured every year

5. This problem is very difficult and serious. None of them can deal with it (such)

=> This is such a difficult and serious problem that noone of them can deal with it

6. Alcohol is harmful to our healthy. Cigarettes are too. (Both)

=>Both alcohol and cigarettes are harmful to our healthy

7. The storm broke. Most people moved to safe areas. (Before)

=> Before the storm broke, most people had moved to safe areas

`text{1. I wish I hadn't missed our camping trip last week.}`

`text{2. It took us 2 years to train to be a flight attendent.}`

`text{3. Robbie suggested going fishing thí afternoon.}`

`text{4. Japan is a country where about 1.500 earthquakes occured every year}`

`text{5. This is such a difficult and serious problem that noone of them can deal with it}`

`text{6. Both alcohol and cigarettes are harmful to our healthy}`

`text{7. Before the storm broke, most people had moved to safe areas}`