[ Grammar - Present Perfect with for and since ]
I haven’t worked this hard _________ I was at school.
A. for
B. when
C. since
D. yet

Random Topics:
Tenses and VerbsPrepotitionsAdverbial ClauseInfinitives or GerundsFOR & SINCERelative Clauses beginning with PrepositionsComplex SentencesSimple PastSimple Present & Present Progressive3rd Person SingularOther quiz:
Degrees of Comparison › ViewIf I am 10 years old and my brother is 12 years old, my brother is older than me.
A. True
B. False
Modal Verbs › View
You _____ report this issue to the manager immediately.
A. must
B. could
C. can
D. might
Adjective › View
a.safe
b.dangerous
Grammar & Vocabulary › View
It is important to _____________ carefully to the teacher’s instruction before we start our project.
A. listen
B. listens
C. listening
D. listened
