对括号部分提问：They go to London (once a year).

对括号部分提问：They go to London (once a year). （对划线部分提问) They go to the seaside once a year.（划线部分 once a ye I go to see my grandparents (once) a year.(对括号部分提问） They go to the park once a year (用once a year 提问) We go home (once a week). 对括号部分提问 对括号部分提问：I go home (once a week) . 对括号部分提问：(格式在下)原句：They flown to Shanghai (once a month) 对括号部分提问：They usually (go to the movies) . They are going to stay in London (for two weeks) 对括号部分提问 英语括号部分提问：括号部分提问：1.We went to London (by plane ) last year ( 英语句型转换They eat beef 【once or twice a week】.对括号部分提问 They watch movies (once a week)对括号部分提问 My favorite TV shows