I felt really bad when I ___ that mistake in class today.
a. did
b. made

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Gerund after Prepositions and Certain VerbsGrammar - NounsPast Simple & Past PerfectVocabulary and TensesConjunctions and PronounsEnglish MorphosyntaxNoun / PronounConditionalSynonym and AntonymPronouns ( Interrogative )Other quiz:
Grammar › ViewA : What time is it ? (09.15)B : It is …..
A. Half past nine
B. Fifteen nine
C. Quarter to nine
D. Quarter past nine
Modals › View
My car keys are possibly in the kitchen.
A. My car keys might be in the kitchen.
B. I don’t know whether my car keys are in the kitchen.
C. My car keys cannot be in the kitchen.
D. My car keys should be put in the kitchen.
Grammar › ViewMy cousin will spend at least one year working abroad ______ he can find out how things operate overseas.
A. because
B. as so
C. so that
D. as long as
Gerunds And Infinitives › View
There are many books available …… one how …… magic tricks.
A. to teach / to perform
B. teaching / performing
C. teach / to have performed
D. taught / to be performed
E. to be teaching / performed