[ Present Perfect Continuous Tense ]
… here for over two hours?
A. Does she has been waiting
B. Has she been waiting

Random Topics:
ModifiersPast Simple TensePast Progressive TenseComparative and Superlative AdverbsGerunds in SentencesTenses, Tag Questions, Phrasal VerbsGerunds + To InfinitiveWH- Question WordsWill and Will notArticle & PrepositionOther quiz:
Grammar › ViewYou are _____ to do this job.
A. assign
B. assigned
C. assignment
Future Tenses › View
It’s hot in here. ___ I (open) the window?
A. Do I open
B. Am I going to open
C. Am I opening
D. Shall I open?
Prepositions and Adverbs › ViewThe bird flew _________ the open window to get inside the house.
A. through
B. by
C. into
D. up
Adverb Clauses › View
_________ you eat less sugar, you will definitely lose some weight.
A. even if
B. unless
C. even though
D. if
