[ 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:
Articles › ViewWhere is ___ book I was reading?
A. a
B. an
C. the
D. X
Grammar › View
Mutia : it’s 9 o”clock. It’s time to go to bed.
Mum : good night, darling.
Mutia : …. Mum
A. I love you , too
B. Good evening
C. I’m very well,
D. Good night
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
