[ Infinitive Gerund ]
I saw him ________ in his room
A. to sing
B. sung
C. sing
D. sang

Random Topics:
Grammar ModalsVerbs of movementGrammar: SyntaxAdverb Clause ConnectorSubject Verb Agreement & Subjunctive MoodWas & Were QuestionsHow much or How many?Adjectives (-ed / -ing)Present Simple & ContinuesNouns - Word Form-IONOther quiz:
Grammar › ViewWalailak University _____ located in Nakhon si Thammarat. Students and locals______ the beautiful campus.
A. are/enjoys
B. was/enjoyed
C. is / enjoy
Sentence Structure › View
Which of the following is a complex sentence?
A. I like to read books.
B. I like to read books, and I also enjoy writing stories.
C. I like to read books because they are interesting.
D. I like to read books, and I also enjoy writing stories when I have time.