[ Grammar ]
A microscope is an instrument ________________ is used to magnify objects. Which word best completes the sentence?
A. that
B. who
C. whose
D. which

Random Topics:
Some & Anytoo / enoughParallelism and Subject Verb AgreementSimple Future - WillAbilityGrammar Present Perfect (ever never)as...as, comparatives, superlativesAdverbial ClauseNoun ClausesConjunctive AdverbsOther quiz:
Future Tenses › ViewWhat’s your plan for tomorrow?
A. I’ll eat a hamburger.
B. I’m doing my music practice.
Vocabulary › View
Sleepwalker
A. Insomniac
B. Ambulatory
C. Somnambulist
D. Soothsayer
. What is the purpose of using “Should/Ought to/Had better (not)” ?
A. For Advice
B. For Necessity
C. For Ability
D. For Polite Requests
Grammar: was/were › View
The dogs ______ barking at the strangers.
A. was
B. were
