完成对话,用给出的一般过去时和现在完成时单词词形.
完成对话,用给出的一般过去时和现在完成时单词词形.
例 A:Have you ever lost(lose) anthing valuable?
B:Yes,I_________(lose)my cell phone last month.
A:_____you_____(find)it yet?
B:No.Actually,I________already______(buy)a new one.Look!
A:I______(get) it at Tach Town last weekend.What about you?_______you ever (lose)anything valuable?
A:Well,I have ______(leave)my electeonic address book in a coffe shop a couple of months ago.
B:How annoying!Maybe that's why you _______(noe call)me for a while.
A:But you ________(not call)me in a long time.What's your excuse?
B:I told you.I_______(lose)my cell phone!
请高手们告告我写这些题怎样区别现在完成时和过去式,