I ____ for my math textbook all day, but I ____ it yet.
A. have been looking/haven’t found
B. have looked/haven’t found
C. have been looking/haven’t been finding
D. have looked/haven’t been finding

Random Topics:
Adjective or AdverbPresent Tense vs Past TenseContinuous TenseTenseInfinitive GerundHave as verb and auxiliaryPerfect and Past TensesPre-intermediatePast simple vs Present perfectPrepositions and TensesOther quiz:
Progressive Perfect and Simple Verb Tenses › ViewThe present perfect tense is formed by…
A. the base form of the verb + s
B. the present participle
C. have/has + past participle
D. have/has been + past participle
Tenses › View
Making such a thing ___ the peasants and they ___ situation despite some hardships.
A. Pleased / were utilizing
B. pleased / utilized
C. pleases / utilizes
D. is pleasing / were utilizing
E. is pleasing / utilize
Perfect Verb Tenses › ViewAbigail and Luna are excitedly chatting about their weekend plans. What does the future tense reveal about their conversation?
A. An action that has already happened
B. An action that is happening now
C. An action that will happen
D. An impossible action
Grammar › View
Kenny ____ speak Chinese fluently years ago. Now he can barely use the language.
A. can
B. would
C. will
D. could
