[ 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:
Grammar › ViewIdentify the indirect object and the direct object: My mom bought me an ice cream.
A. ice cream:DO, me, IO
B. ice cream, IO; me, DO
C. mom, DO; Ice Cream, IO
D. bought, DO; ME, IO
Tenses › View
They (never/be) to the Mekong Delta before, but they plan to go next month.
A. have never been
B. had never been
C. will never be
D. never be
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
