Usually stare/watch out the window for the entire journey when I am on a plane. 2 The prime minister stood up, ready to receive/ recognise his guests. 3 The use of poisonous chemicals/litter in farming results in serious environmental damage. 4 The child let go of the balloon and watched it float/send away into the sky. It's such a beautiful evening, let's go and sit on the drive/porch for a bit. It is important to cover/block your eyes with sunglasses when you look at the sun. Please buy me a kilo of potatoes when you go to the grocer's/newsagent's. There is not enough room for a cycle path on this street - it is too wide/narrow. Is your new neighbour/neighbourhood very crowded? What I enjoy most about living at/in the suburbs is the peace and quiet they offer.

Here are the suggested words for each sentence based on context:

1. Usually stare/watch out the window for the entire journey when I am on a plane. (watch)
2. The prime minister stood up, ready to receive/recognise his guests. (receive)
3. The use of poisonous chemicals/litter in farming results in serious environmental damage. (chemicals)
4. The child let go of the balloon and watched it float/send away into the sky. (float)
5. It's such a beautiful evening, let's go and sit on the drive/porch for a bit. (porch)
6. It is important to cover/block your eyes with sunglasses when you look at the sun. (cover)
7. Please buy me a kilo of potatoes when you go to the grocer's/newsagent's. (grocer's)
8. There is not enough room for a cycle path on this street - it is too wide/narrow. (narrow)
9. Is your new neighbour/neighbourhood very crowded? (neighbour)
10. What I enjoy most about living at/in the suburbs is the peace and quiet they offer. (in)

Feel free to ask if you need further clarification or assistance with any other questions!