[ Perfect Progressive Tenses ]
I ______ (practice) the piano for two hours when my friend arrived.
A. had been practicing
B. have been practicing
C. will have been practicing

Random Topics:
Personal & Possessive PronounsModals of Obligation & ProhibitionThings in EnglishLinking Verbs & Helping VerbsAdverbial Clause, Noun ClauseNouns as AdjectivesModal VerbPerfect and Past TensePossessive Pronouns and Adjective PronounsNoun and Modal VerbsOther quiz:
Homonyms › ViewHe stood for a long time on the ___ watching the ships pass by.
a. peer
b. pier
Adverbs › View
We couldn’t arrive on time …….. the traffic was terrible.
A. because of
B. because
Grammar › ViewThe student is smiling. She _____ happy.
A. hopes to be
B. seems to be
C. looks like
D. seems like
Nouns, Articles, Determiners › View
When I listened to the radio this morning, ……… very bad. England are out of the World Cup.
A. the news were
B. the new was
C. the news was
D. the new’s
