[ Vocabulary ]
a rocky sandbank or sandbar lying just below the surface of a waterway
A. submerge
B. riffle
C. limber
D. resistance

Random Topics:
Time ExpressionsPhrases and TensesConditional and SubjunctiveComparisionVocabularyPreposition and ConjunctionAdjective, Adverb, and Noun FormsPrepositions and Prepositional PhrasesAnalogyTransitionsOther quiz:
Grammar › ViewShe is … a hard working animator that she never gives up improvibg her skill.
A. So
B. Such
Grammar › View
He has ………. a mistake.
A. Make
B. Made
Tenses › ViewThey are watching a movie tonight.
The verb of the sentence is …….
A. They
B. are
C. watching
D. a movie
E. tonight
Modal › View
You _____ connect to the internet to send an email.
A. have to
B. should
C. must
