1) has Nick opened the window?
Nick hasn't opened the window.
2) have Jake and Mike washed their bike?
Jane and Mike haven't washed their bike.
3) has Samantha washed up?
Samantha hasn't washed up.
4) have Bob and Mary been at the cinema?
Bob and Mary haven't been at the cinema.
5) has Len made a cake?
Len hasn't made a cake.
6) has Lord jumped over the fence?
Lord hasn't jumped over the fence.
7) has Ben cleaned his teeth?
Ben hasn't cleaned his teeth.
8) has Lucy painted the chair?
Lucy hasn't painted the chair.
9) have Tim and Kathy decorated the Christmas tree?
Tim and Kathy haven't decorated the Christmas tree.
Объяснение:
1.Due to its habitat in remote places from human civilization-beyond the Arctic circle, the polar bear retains a larger range of its habitat than any other predator. But, despite this, it is on the list of vulnerable species, as its population is only from 20,000 to 25,000 individuals worldwide.
2. the closest relative of the polar bear is the brown bear. Both species descended from the same ancestor approximately 600,000 years ago.
3. Brown and polar bears can interbreed with each other and produce hybrids, due to the fact that they are related species and they had common ancestors.
Polaar Bear
1. Britain's climate is not cold in winter and not so hot in summer. 2. The ship's name is Yuri Gagarin. 3. This country's weather is cool. 4. That worker's instruments are in the box. 5. Shubins' garden is beautiful. 6. Students' lessons begin at nine a.m. 7. Those engineers' plan is the best one
как-то так. надеюсь
Объяснение: