I had been helping my neighbor for a year before he finally thanked me.
A. Future Perfect Continuous
B. Present Perfect Continuous
C. Past Perfect Continuous

Random Topics:
Unreal Uses of Past TensesHelpful Phrases Present ContinuousIELTS VocabularyEs and SIndirect SpeechSimple Present Tense/be/Present ProgessiveGive, do and makeNoun / PronounProgessive TensesOther quiz:
Tenses › ViewWrite a sentence using simple past continuous tense.
A. He was reading a book when the doorbell rang.
B. She cooked dinner when the phone rang.
C. They were playing soccer when it started raining.
D. She was cooking dinner when the phone rang.
Grammar › View
_____ have made a billion dollars last year.
A. His father is thought that
B. His father is thought to
C. It is thought
D. It is thought that his father
Grammar › ViewThey ____________ to go to the mall in the evening.
A. planning
B. plans
C. plan
D. planned
Present Tenses › View
Daisy ……….. some food in the kitchen at present. She always ……………… in the morning.
A. cook/ is cooking
B. cooks/ are cooking
C. cooks/ is cooking
D. is cooking/cooks
