单项选择题—How about your trip to Hainan—It couldn’t have been . Sometimes I went swimming in the sea; sometimes I lay on the sand.
单项选择题Tom’s mother always told him not to smoke again, but didn’t help.
单项选择题— Do you mind if I the TV a bit— Yes, I do, because I’m busy with my homework now.
单项选择题new buildings will be built in my hometown.
单项选择题When I came back, I found my bicycle was .