The key to exercise solutions in chapter Language Knowledge 1 for the textbook On Screen B1+ - Student's Book with authors Virginia Evans and Jenny Dooley from Express Publishing
Question
Read the complete sentence, then the gapped one. What grammar structure does the second sentence test?
Choose the answer that best completes the gapped sentence.
Answer
the comparative form
C (A and D aren't in comparative, B is in the comparative but when used to complete the second sentence the sentence doesn't mean the same as the first sentence)