Swanson identified magnesium deficiency ———- a casual agent in the occurrence of migraine headaches.
A. such as
B. like
C. so
D. too
E. as

Random Topics:
So Such Enough TooPossessive Adjectives VS Possessive PronounsHave to / Do not have toGrammar Like & Linking VerbPast Perfect and Past Perfect ContinuousConjunctionAuxiliaries VerbVerbals and GerundsCausative VerbRelative - ConditionalOther quiz:
Grammar › ViewI want to be a doctor __________ I want to help other people.
A. although
B. while
C. until
D. because
E. unless
Narrative Tenses › View
A _________ (you / complete) the report when you went for lunch yesterday?
B No, _________ (I / still / write) it yesterday afternoon.
A. Did you complete / I still wrote
B. Were you completing / I was still writing
C. Had you completed / I was still writing
Vocabulary › ViewWhat happens when things “expand”?
A. They repeat regularly and always lead back to the starting point
B. They cause suffering or force people to do without things they need or are used to having
C. They increase in size, volume, or number
D. They become more challenging and require extra effort
Conditional Sentences › View
If she __________ (not/be) always so late, she __________ (be) promoted.
A. wasn’t / would be
B. wasn’t / would is
C. wasn’t / was
D. would be / was
