[ Grammar & Vocabulary ]
It is difficult ____ rules that tell exactly when you should apologize.
A. writing
B. to write
C. write
D. wrote

Random Topics:
Irregular verbsIntermediate PrepositionsAdverbs, Modals, Preposition of timeVocabulary and TensesPresent Perfect: for/sincePossessive Adjectives & Possessive PronounsPhrasal Verb & Prepositional PhraseFuture or PastArticles and PronounsComparative AdverbOther quiz:
Gerunds and Infinitives › ViewHe decided ______ Barbie with me.
A. to watch
B. watching
Vocabulary › View
attempting to appear morally superior
A. Desolate
B. Sanctimonious
C. Exile
D. Laxity
Preposition of Time › Viewwill graduate from secondary school _______ 2015.
A. at
B. in
C. on
D. from
Demonstrative Pronouns and Verb Tenses › View
The children ____ in the park.
A. are play
B. are playing
C. play
D. is playing
