Giúp mình với ạ mình cần gấp!!! 1 We_________(never/see) any of Picasso’s paintings before we_______(visit) the art museum. 2 Kim________(feel) very nervous when she first drove in England because________(not/drive) on the left before. 3 Jill________(feel) much better after she___(take) the medicine. 4 yesterday we did a test, but I_______(find) it quite easy because I______ (already/do) it before. 5 No one_______(laugh) at my joke because they______(hear) it before. 6 It was raining hard, but by the time class_____(be) over, the rain_______(stop). 7 When Kevin found his wallet, he______(discover) that someone_______(take) all his money out of it. 8 Mr. Tung______(be) a high school teacher for many years before he______(become) a writer. 9 Tan was late. The teacher______(already/give) a quiz when he______(get) to class. 10 The post_____(not/arrive) when I______(leave) the house this morning.