Topics: Grammar for TOEFL
There are geographic, economic, and cultural reasons why _____ around the world.
A. diets differ
B. do diets differ
C. are diets different
D. to differ a diet
Select your answer:

Random Topics:
Grammar: Imperative and Exclamatory SentencesConditionals and Modal VerbsVerb Tenses and Subject Verb AgreementGrammar - too & enoughInversions and SubjunctiveNarrative TensesPast, Present, FutureToo or EnoughAdverbs (manners & modifiers)Noun / PronounOther quiz:
Grammar › ViewHow fast ________ when the accident happened?
A. are you driving
B. were you driving
C. did you drive
D. had you driven
Conditionals › View
If you _______________, I _______________ early.
A. want, come
B. want, will come
C. want, would come
