[ Subject-Verb Agreement ]
My mother has ____ (do) a lot of important stuff for me.
A. Do
B. Does
C. Doing
D. Done

Random Topics:
Gerunds and InfinitivesPresent Simple x Present ContinuousCommasPronouns, Sentence Structure, and Figurative LanguageWill & Be going toMixed ConditionalsVerbs & Verb TensesActive vs. Passive VoiceCorrelative Conjunction & Complex SentencesDependent PrepositionOther quiz:
Tenses › ViewDarren and Roby ____ chili at all because it is spicy. They can’t stand on it
A. eat
B. doesn’t eat
C. don’t eat
D. weren’t eating
Simple Present Tense › View
__________ you tired in the morning?
A. Does
B. Do
C. Is
D. Are
The knee is the joint …………… the thigh bone meets the large bone of the lower leg.
A. when
B. where
C. why
D. which
Conjunction › View
Siti says we should eat enough … be healthy.
A. to
B. in order to
C. so that
D. although