I ____ Mr. Smith since he moved to Shanghai.
Last year, we ______ an English play Pocahontas on the stage and we all enjoyed ourselves a lot.
Susan wanted to be independent of her parents. She tried ______alone, but she didn't like it and moved back home.
---Miss Hu, I have trouble __________ grammar and __________ the text.
His doctor had advised him ___________ smoke, and later his mother made him ________ buying more cigarettes.
---How was your weekend? ---Great! It was my grandfather’s _________ birthday. We enjoyed ourselves.