[ Present Perfect Continuous Tense ]
Why … Mandarin classes for the last three weeks?
- have not you been attending
- have you not been attending

Random Topics:
Verb Tenses and Past ParticiplesTenses and ConclusionsGrammar, Conditional Sentences, VocabularyPresent Simple and Modal VerbsPassive ModalsRelative Clauses and etcCorrelative Conjunction & Complex SentencesActive & Passive VoiceConjunctions in Complex SentencesMust Vs Have toOther quiz:
Modal Verbs › ViewAminah __________ride a bike when she was three years old.
A. could
B. might
Grammar › View
We must insert the correct key into the ________.
A. pigtail
B. Keyhole
C. Seat belt
D. scrapbook
Preposition › ViewEvery one of us will have to atone _____his or her misdeeds.
A. Of
B. For
C. By
D. With
Quantifiers: too many, too much & enough › View
I am really full… I ate ___ food
A. too many
B. too much
C. very
D. enough
