we often use keys for locking doors.（改为被动语态）

we often use keys for locking doors.（改为被动语态） we often use computers in our d_____work. We should use bikes [ ]often and use things [ ]of paper. we often use _____(rise) tones to show our surprise. We often use our______[left,right]hands to write. what often use water for do we连词成句 We often use a color —— to draw pictures? we often use comptuers in our d work We often use our () to chat with our net firends We often use a ( ) to draw astraight line We don't use this knife often.(改为被动语态) You use this set of keys for 翻译：collocations We often use certain words together and we call this collocation . The f____ day fo May is May Day.We often give f____ to our teachers.We Chinese people a____celebrate Christmas Day. We often use e-mail English ,so that we can type faster.=We often use e-mail EnglisWe often use e-mail English ,so that we can type faster.=We often use e-mail English ＿＿ ＿＿ ＿＿. We can use _____ keys for ______.A.this,type B.this piece of ,type C.this list of,typing D.this set of,typing We can use ___(键盘)for typing.老师非说是keys.可是我觉着是keyboards,表示用处嘛况且给的提示都是键盘. We often use a recorder in our english class改被动怎么改