If you are invited to someone's house for dinner in the United States, you should (31) _______ a gift, such as a bunch of flowers or a box of chocolates. If you give your host a (32) _______ gift, he/she may open it in front of you. Opening a present in front of the gift-giver is considered (33) _______. It shows that the host is excited about receiving the gift and wants to show his/her (34) ______ to you immediately. (35) _____ the host doesn't like it, he/she will tell a "(36) _____ lie" and say how much they like the gift to prevent the guest from feeling bad. If your host asks you to arrive at a particular time, you should not arrive (37) _______ on time or earlier than the (38) _______ time, because this is considered to be potentially inconvenient and (39) _______ rude, as the host may not be (40) _______. 31. a. take b. give c. bring d. make 32. a. Unwanted b. valuable c. unpacked d. wrapped 33. a. Rude b. polite c. unpolite d. funny 34. a. Appreciation b. admiration c. respect d. enjoyment 35. a. Since b. Only if c. Even if d. Whether 36. a. great b. obvious c. deliberate d. white 37. a. gradually b. exactly c. perfectly d. recently 38. a. Expected b. permitted c. waited d. wasted 39. a. however b. never c. therefore d. consequently 40. a. willing b. ready c. welcome d. waiting giúp em vs ạ em cảm ơn