[ Present Tenses ]
Quiet! I ………………………….. here and I can’t concentrate.
A. study
B. am studying
C. have studied
D. has studied

Random Topics:
Past simple regular verbsWill or Going toTOEFL GrammarThe Future Simple TenseGrammar - Collective NounsGerunds and TensesMiscellaneous Grammar UsagesPast Tense vs Future TenseParts of SpeechBasic TensesOther quiz:
Modals › ViewWhich sentence uses a modal verb to express a strong possibility?
A. She might be at the park.
B. She could be at the park.
C. She must be at the park.
D. She can be at the park.
Grammar › View
The email ___ (not receive) yet.
A. is not received
B. has not been received
C. was not been received
No Excuse Words / Conjunction SO › ViewWhat ____that mean?
A. duz
B. does
C. duse
Subject Verb Agreement › View
Select the appropriate verb form to complete the sentence: Either of the books _______ worth reading.
A. is
B. have
C. were
D. are
