Activity 4.9

BOOM SKYROCKET SURGE DIP PLUNGE

1. Sales of smartphones increased rapidly after 2007.
   ➔ Sales of smartphones skyrocketed after 2007.
2. There was a large population increase after the war.
   ➔ There was a population after the war.
3. House prices increased overall, but for 5 years in the middle of the period they were a little bit less.
   ➔ House prices increased overall, except for a 5-year in the middle of the period.
4. The injury rate fell dramatically, as soon as the new safety equipment was installed.
   ➔ The injury rate , as soon as the new safety equipment was installed.
5. Swimwear retailers experience a huge increase in demand in summer.
   ➔ Swimwear retailers experience a in demand in summer.