Multiple choice

Directions: This question presents a sentence, all or part of which is underlined. Beneath the sentence you will find five ways of phrasing the underlined part. The first of these repeats the original; the other four are different. If you think the original is the best, choose the first answer; otherwise choose any one of the others.

Hovercraft, or air-cushion vehicles, are unusual because they travel over land and water on a layer of air.

  1. are unusual because they travel over land and water on a layer of air

  2. are unusual since they travel over land and water on a layer of air

  3. is unusual because it travels over land and water on a layer of air

  4. are unusual in that they travel over land and water on a layer of air

  5. is unusual as they travel over land and water on a layer of air
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Explanation for (1): Error of conjunction. This sentence muddles up reason and characteristic. They are unusual in a certain respect, not unusual 'because'.

Explanation for (2): This option also muddles up the reason and characteristic. They are unusual in a certain respect, not unusual 'since'.

Explanation for (3): This option also muddles up the reason and characteristic. In addition, it makes unwarranted and incorrect changes in auxiliary and objective pronoun. 'Hovercraft' has been used in the plural sense as clarifies by the use of 'vehicles'.
Justification for (4): This option clarifies that they are unusual in a certain respect, not unusual 'because'. Explanation for (5): This option also muddles up the reason and characteristic. They are unusual in a certain respect, not unusual 'as'. In addition, it makes unwarranted and incorrect change in auxiliary. 'Hovercraft' has been used in the plural sense as clarifies by the use of 'vehicles'.

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