1. The rock was poised on the edge of the cliff.
[A] balanced [B] dangling [C] rolling [D] perpendicular
2. The travellers on the boat were mesmerized by the motion of the sea.
[A] paralyzed [B] hypnotized [C] nauseated [D] reverberated
3. Compared to most mammals, human beings care for their offspring for a very long time.
[A] children [B] homes [C] gardens [D] pets
4. Journalists covering a national political convention have to deal with numerous hurdles in order to interview politicians.
[A] preparations [B] bodyguards [C] obstacles [D] secretaries
Keys: ABAC
[A] balanced [B] dangling [C] rolling [D] perpendicular
2. The travellers on the boat were mesmerized by the motion of the sea.
[A] paralyzed [B] hypnotized [C] nauseated [D] reverberated
3. Compared to most mammals, human beings care for their offspring for a very long time.
[A] children [B] homes [C] gardens [D] pets
4. Journalists covering a national political convention have to deal with numerous hurdles in order to interview politicians.
[A] preparations [B] bodyguards [C] obstacles [D] secretaries
Keys: ABAC