Crossing Death Valley, —- temperatures reach well above 110 Fahrenheit, was a near insurmountable task for the early pioneers.
A. when
B. where
C. whom
D. which

Random Topics:
Academic VocabularyPresent Tense (Negatives and Questions)Tenses and ConclusionsCardiology ServicesParallelism and Subject Verb AgreementCountable QuantifiersModals and AdviceActive & Passive VoiceSentence StructureUnreal Uses of Past TensesOther quiz:
Modals › ViewWhat is a piece of advice you would give to a friend about studying?
A. Make a study plan and use active learning methods.
B. Don’t ask questions or get help from others.
C. Only read textbooks without engaging with the material.
D. Only study the night before a test.
Grammar › View
Do you know what __________ animal in the world is?
A. slow
B. the slowest
C. slow as
D. slower
Grammar › ViewWhich subordinating conjunction best fits in the blank?
____________ I am late, I didn’t miss the beginning of class.
A. Since
B. When
C. Although
D. Because
Grammar › View
I _______________ unwell at the moment, so I’ll go to the health center.
A. feel
B. feels
C. am feeling
D. are feeling
