Before(write)_________an application letter,you should be aw

Before(write)_________an application letter,you should be aw Should be ____(write) this letter? An application(申请) letter – the letter you write to apply fo You should write a letter 同义句 You ---- ---- write a letter You should write him a letter (否定句) You ____ write a letter before I return to China,write a letter for you. Before you write,you should o_____ your ideas first. You should write him a letter的同义句 You should be __(polite)than before You should write him a letter= You -- -- --write him a lette You should write him a letter.改为同义句：You should ____ _____ __ You should write her a letter to offer an apology（对write her