Rearrange the following phrases into a meaningful sentence.

The beginning of the sentence has been given below.

Read the options and find out which of the four combinations is correct:-

One common mistake that _________________ .

(A) thinking that it

(B) would be a waste of time

(C) to work together

(D) many people have made is

Choose the correct answer from the options given below

The correct answer is (D), (A), (B), (C).

To find the correct combination, let us analyze the sentence structure starting with the given introductory phrase:
"One common mistake that..."

Next, we need a verb phrase that logically continues "One common mistake that". Looking at the choices, option (D) "many people have made is" perfectly fits, completing the subject description. This gives us:
"One common mistake that many people have made is..."

Following the linking verb "is", we need to describe what the mistake consists of. Option (A) "thinking that it" fits grammatically as a gerund phrase introducing the content of the mistake:
"One common mistake that many people have made is thinking that it..."

Next, "it" acts as a dummy subject that requires a predicate adjective or noun phrase. Option (B) "would be a waste of time" completes this clause:
"One common mistake that many people have made is thinking that it would be a waste of time..."

Finally, we need an infinitive phrase to specify what action "would be a waste of time". Option (C) "to work together" completes the sentence seamlessly:
"One common mistake that many people have made is thinking that it would be a waste of time to work together."

Combining these steps, the correct sequence is (D) → (A) → (B) → (C), which corresponds to the first option.