When the teacher came into the classroom, all of us __________ the classroom.A. are cleaning B. were cleaning C. cleanedD are cleaned
—Who is that? —_____ is Michael. A. He B. That C. This
—How are you? —I’m _____. Thanks. A. good B. nice C. Fine
—What is that in English? —It’s _____ eraser. A. a B. an C. /
—He plays basketball so well! Who taught _______? —He learnt it by _______. A. him; him B. himself; him C. him; himself
Watching TV too much ________bad for you eyes. A. are B. was C. is