[ 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:
Modals › ViewWhich one is the correct sentence from below?
A. Rita must came today.
B. Diah shouldn’t joins the meeting.
C. Do you have to finish it now?
D. He could not to ride a bike.
Tenses › View
If you (not smoke), you wouldn’t have died of lung cancer.
A. don’t smoke
B. hadn’t smoked
C. didn’t smoke
D. haven’t smoked
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