跟别人送你东西时,你应该说:A.Hello! B.Good bye. C.Thank you.
She has three new _______. A. teacher B. student C. teachers
Who are ______? A. they B. them C. their
What ________ he like? A. am B. is C. are
She’s ________ university student. A. a B. an C. the
________ you have new teachers? A. Do B. Are C. Is