You really must be tired! You ……………………………….( work) on your book all day long.
A. have worked
B. are working
C. work
D. have been working

Random Topics:
Grammar, adverbs of frequency placementMain Idea and Sentence StructureModal Verb, Passive VoiceSo Such Enough TooFirst ConditionalSimple Present & Present ProgressivePast Tense (Regular and Irregular)Sentences vs Run-OnsPresent Progressive TenseSubordinating ConjunctionsOther quiz:
Tenses › ViewChoose the correct form of the verb from parentheses. It may sound strange but I (believe / am believing) his story.
A. believe
B. am believing
Present Continuous › View
____ Melanie _______ (play) baseball later?
A. Are Melanie playing baseball later?
B. Does Melanie play baseball later?
C. Is Melanie playing baseball later?
D. Melanie is playing baseball later?
Grammar › ViewI have to look for another source for my research, _______ the ones I found are not reliable.
A. For
B. Yet
C. And
D. So
Grammar › View
Choose the correct sentence(s):
A. We didnt want to take the test, because we didnt understand the content.
B. We didn’t want to take the test we didn’t understand the content.
C. We didn’t want to take the test. We didn’t understand the content.
