I don't know why he did that.

A)
Complex
B)
Simple
C)
negative
D)
Compound

Correct Answer :   Complex

Recently Updated in Identify the Sentences Questions
Q .
You should start working a little harder or you are going to fail your test.
A)
Simple
B)
Negative
C)
Complex
D)
Compound

Correct Answer : Option (D) :   Compound

Q .
The new girl in our ESL class has a brother in grade 7 and a sister in grade 9.
A)
Simple
B)
Complex
C)
negative
D)
Compound

Correct Answer : Option (A) :   Simple

Q .
Don’t tease him or he will attack you.
A)
simple
B)
complex
C)
compound
D)
negative

Correct Answer : Option (C) :   compound

Verbal Ability MCQ's

Synonyms
Antonyms
Tense
Adjectives
Selecting words
Homophones
Gerunds
Identify the Errors
Identify the Sentences
Plural Forms
Nouns
Articles
Prefix
Suffix
Sentence Formation
Tag Questions
Prepositions
Substitution
Joining Sentences
Sentence Improvement
Fill in the blanks
Paragraph Formation
Sentence Arrangement
Active and Passive Voice