[ Grammar ]
I do not remember any customer ever ____________ about our service.
A. complain
B. complaining
C. complained
D. to complain

Random Topics:
Clauses of ReasonUnreal ConditionalsPast Simple & Past PerfectArticles & PrepositionVerbs - third personPre-intermediateConditional Sentence Type 0-3Infinitive and GerundConditionals and Modal VerbsMixed TensesOther quiz:
Grammar and Idioms › ViewChoose the correct usage of the subjunctive mood:
A. It is essential that he attends the meeting.
B. It is essential that he attend the meeting.
C. It is essential that he attending the meeting.
D. It is essential that he attended the meeting.
Grammar › View
Thanat__________his teeth before breakfast every morning.
A. will clean
B. is cleaning
C. cleans
D. clean
Grammar › ViewIf my mother goes home late this evening, my father ___________.
A. will cook
B. would cook
C. had cooked
D. has cooked
Vocabulary › View
More than one noun.
A. Regular
B. Irregular
C. Plural
D. Sentence
