[ Grammar ]
Fill the blank with suitable preposition
I am sorry ….. what I have done
A. at
B. on
C. for

Random Topics:
Relative - ConditionalPresent Simple Positive and NegativeGrammar of Conjunctions and PrepotitionsVocabularyConditionals (0 - 1 - 2)Infinitive and GerundsTenses and StructureIf- ConditionalConjunctions & InterjectionsExclamationOther quiz:
Vocabulary & Grammar › ViewHe was on his knees, ___________ for mercy/forgiveness.
A. pleading
B. plead
C. contemplating
D. contemplate
Irregular Verb › View
Sereyraksa has ________ the last few months eating, sleeping, and partying.
A. spend
B. spended
C. spent
D. spending
Grammar › View__________ she like playing tennis?
A. Do
B. Does
Grammar › View
They …………………………. gentle.
A. always are
B. always is
C. are always
D. is always
