[ Grammar & Vocabulary ]
Einstein is the person … showed that time can speed up or slow down.
A. which
B. who
C. whose
D. where

Random Topics:
Have toVerb PatternsModal Verbs of PermissionProgressive Verb TensesPrepositions of Location, Movement and TimeGerundSimple Past TensesDefinite vs Zero Article Abstract NounsSimple Present and Simple PastVocabulary, Adjective & PrepositionOther quiz:
Grammar › ViewThe house …….he bought last year was expensive.
A. who
B. whom
C. which
D. whose
Modals › View
Imagine this, Daniel, Aria, and Avery are eagerly waiting for a surprise. She ____ send them a parcel next week. What do you think will fill in the blank?
A. can
B. could
C. will be able to
Tag Question › ViewEverybody looks tired, ________?
A. doesn’t it
B. don’t they
C. does it
D. do they
Tenses › View
I ___ at this company since 2020.
A. worked
B. have worked
C. work
D. will work