--Please don’t forget to turn off the lights again,Tom.---____________.
—Where ____ they from? —They’re from China. A. is B. am C. are
当别人帮助了你, 你应该说 ____ A. OK. B. Nice to meet you. C. Thank you.
下列字母书写格式正确的是 ____。 A. B. C.
下列各组字母中全部是元音字母的是 ____。 A. a, e, o, r B. a, i, u, e C. o, u, e, n
—____ you Mingming? —Yes, I ____. A. Are; are B. Am; am C. Are; am