[ Tenses ]
While I was walking through the park, I ______ a bird building its nest.
A. noticed
B. notice
C. have noticed

Random Topics:
Grammar (Possessive Pronouns)Vocabulary and PhrasesPast Simple vs Present SimpleAdjectives and PrepositionsVerb Types and TensesModals and ResponsibilitiesTenses and VoiceGrammar and Verb TensesWH Questions and Simple Past TenseDirect Object and Indirect ObjectOther quiz:
Tag Questions › ViewHe’ll never know, ………………?
A. is he
B. won’t he
C. will he
D. isn’t he
The Structural Types of Sentences › View
I came here to chew bubble gum and study grammar, but I’m all out of gum.
A. simple
B. complex
C. compound
D. compound-complex
Sentence Completion › ViewBecause Ms. Kimura has a long _______, she will always leave work at 5:30.
A. commute
B. commune
C. community
D. compost
Modals Verbs › View
They_______be dangerous.
A. Will
B. Could
C. Can
D. May
