[ Past Simple, Past Continuous, Past Perfect, Past Perfect Continuous ]
What’s that floating __ the water?
A. on
B. in
C. at
D. by

Random Topics:
Modals and Present TensesDemonstrative PronounAlthough / DespiteThird ConditionalMesopotamia VocabularyWill and Will notPresent simple, Present continuous, Singular, PluralAdjective OrderRegular and Irregular AdverbArticles and PronounsOther quiz:
Present Perfect & Past Simple Tense › ViewPeter found his key two hours ______.
A. for
B. since
C. ago
D. in
Grammar › View
… is a soft pillow.
A. That
B. This
C. Those
D. These
Irregular Adjectives › ViewThis painting has the __________ frame in the art gallery.
A. good
B. better
C. best
D. bestest
Verb Tenses › View
. Choose the correct progressive tense: He (read) a book right now.
A. was reading
B. reads
C. is reading
D. readed