[ Grammar ]
I _____________ to repair the lock on our door for the last four hours without any success.
A. am trying
B. tried
C. have tried
D. have been trying

Random Topics:
SubjunctiveIf ConditionalsModals - Conditionals - Future TensesVerb BEIdentifying Sentence TypesSimple Present - WH QuestionsPresent simple, Present continuous, Singular, PluralPhrasal Verb and Modal-ing &-ed AdjectivesSimple Present Tense with Adverb of FrequencyOther quiz:
Simple Past Tense › ViewHe _________ (help) his mother in the garden last Monday.
A. helped
B. helpt
Tenses › View
I _______ (to finish) my project before the deadline.
A. finish
B. finished
C. had finished
D. have finished
Grammar › ViewWhat kind of figurative language is used in the following sentence:
The tree branches danced in the wind.
A. simile
B. hyperbole
C. personification
D. metaphor
Tenses › View
We…………each other two years ago.
A. Love
B. Be loving
C. Are loved
D. Loved