The professor could not understand _____ most of the students ...

[ Grammar for TOEFL ]

The professor could not understand _____ most of the students failed the exam despite the fact that the material had been thoroughly discussed in class and additional study sessions were provided.

A. why

B. if they were paying attention during the lectures,

C. while he was explaining the difficult parts,

D. because they seemed well-prepared during the review,

Select your answer:

Random Topics:

Gerund or Infinitive Nouns Formation and, so, but, because Grammar - either...or, neither...nor Conditionals Type I Adjectives-Comparison, Superlative Adverb Clauses of Time Simple Present Tense with Adverb of Frequency Future Perfect vs Future Continuous Present Simple and Present Continuous Tenses

Other quiz:

Modals of Deduction › View

I’m not sure, but it ___ be a good idea to call her first.

A. can’t

B. might

C. must

D. should

Grammar › View

Helen: What_____ your sister do now?

Jorge: She works as a manager for a small hotel in Peru.

A. does

B. is

C. do

D. was