We _______ each other since I came to Changsha, but we often send emails.
haven’t seen
didn’t see
don’t see
Don't forget ________ the letter to your friend.
当别人称赞你时, 你应该说: “____”。
当你被介绍认识某人后, 你应该说: “____”。
—What ____ is Jane in? —She is in ____ Six.
—Welcome to our school. —____