1：I'm sorry I forgot to --- (give)it back to you. 用括号的词的正确形式填空。答案give可不可以还用have given2:Look there !I--(see) you put them in the book. 答案：saw可不可以还用have seen3:Not yet.I--(look) for it everywhere,but I didn't find it. 答案looked可不可以还用look
參考答案:1 不可以因为是forget to do
2。。。。
