[ 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 › ViewWe should protect the environment _____ it is being seriously damaged.
A. because
B. although
C. so
D. but
Third Conditionals › View
When do we use first conditional?
A. Imaginary situations
B. Probable future situations
C. Situations in the past connected to the present
D. When something happens first
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
