B. Underlined the correct item. 1. Dad’s muscles relaxed/went soft after his accident, as he was unable to exercise for months.
2. David was tired of noise and pollution of the big city, so he decided to move to a small, isolated/industrial town in the countryside.
3. Astronauts who work on the ISS use a(n) airless/vacuum hose to wash with. 4.Deforstation and the effect of tourism on natural habitats are two of the reasons why many plant and animal species are in danger of becoming extinct/destroyed.
5. Object in space float because of the lack/zero of gravity.
6. The streets in our neighborhood are tree-lined/safe for the children to play in. Grammar D. Complete the sentences using the correct form of the verbs in brackets.

1. Do you mind ….(get) off the phone? I need to make a call.
2. Sam avoids ….. (shop) at the corner sop because it’s a bit expensive.
3. George has offered …..(take) the dog for a walk while I’m busy with the chores. 4.They are tired of…… (live) in the dirty noisy city, so they’ve decided to move in the countryside.
5. Danny wants …. (become)an astronauts when he grows up.