Język angielski proszę o uzupełnienie luk przy użyciu czasów past & perfect.
1. His legs are sore and he can hardly walk because he (hike) in the Rocky Mountains.
2. Those devices have changed a lot since Mr. Finch (invent) the first one.
3. This isn't the first time we (observe) such rapid changes in luminosity.
4. When Barry was a kid, he (watch) a lot of nature films. (don't use: would, used to)
5. I couldn't sleep because the neighbors' dog (howl) all night.
6. Once you (sweep) the studio floor, you will be able to leave.
7. Samantha put on a fancy hat which she (not wear) for years.
8. By the time they (set up) their own business, he (go) into liquidation.