Explanation

1.The correct answer is B

The error in this sentence occurs at (B), where there is an improper idiom. The idiom is “ranges from x to y,” not “ranges from x and y.”

2.The correct answer is A

The error in this sentence occurs at (A), where there is an improper verb form. The use of “requires that” dictates that the subjunctive form of “to wear” is needed. The phrase “have been wearing” should simply be “wear.”

3.The correct answer is A

The error in this sentence occurs at (A), where a comma splice is created. To fix the comma splice, “It weaves” should be changed to “Weaving.”

4.The correct answer is C

The error in this sentence occurs at C. The participle “switching” cannot function as the main verb of the sentence and should be replaced by the present tense verb phrase “are switching.”

5.The correct answer is A

The error in this sentence occurs at (A), where there is subject-verb disagreement. To agree with the plural verb “lie,” the singular “origin” must be changed to the plural “origins.”

6.The correct answer is D

The error in this sentence occurs at (D), where there is an improper idiom. Caterpillars (or anything else) can cause damage to something, but they cannot cause damage on something.

Choose the word or set of words that, when inserted in the sentence, best fits the meaning of the sentence as a whole.