FORM/USE: IMPERATIVE
EGP #479 | B2 | MODALITY / expressions with be Can use the imperative form 'be sure to', to express obligation. Lexical range: N/A
务必在航班起飞前至少两小时到达机场。
___Be ___sure ___to arrive at the airport at least two hours before your flight.
退货时务必带好收据。
___Be ___sure ___to bring the receipt when you return the item.
使用该软件时务必经常保存你的工作。
___Be ___sure ___to save your work frequently while using this software.
如果需要任何帮助，务必告诉我。
___Be ___sure ___to let me know if you need any help.
每天务必喝足够的水，尤其在炎热的天气里。
___Be ___sure ___to drink enough water every day, especially in hot weather.