[ Interrogative Pronouns ]
——- is the tallest plant you’ve ever grown ?
A. who
B. which
C. what

Random Topics:
Comparison Degree & GerundsContrastive ConjunctionsAdjectives and VocabularyFuture Simple TensePresent, Past and Future TensePossessive Adjective and PronounMuch, many, a lot of, a few, a littleArticles & Compound NounsRelative PronounPast Simple and Past ContinuousOther quiz:
Verb Tenses › ViewHave you _____ your room yet?
A. tidy up
B. did tidy
C. do tidy up
D. tidied up
Question Tags › View
My parents had gone to Yogyakarta, …. ?
A. have they
B. haven’t they
C. had they
D. hadn’t they
Conjunction › ViewThe milk is cold _____ refreshing _______ I kept it in the refrigerator.
A. but, or
B. and, but
C. or, and
D. and ,because
Grammar › View
By this time next year, I ______ all my exams.
A. have taken
B. take
C. will have taken
D. will take