1 has。带有 since 从句或短语的主要分句通常要使用现在完成时态，不过有例外。夸克说，当主句所表达的是一个习惯性的动作时，就可以用一般现在时，甚至现在进行时。He has to move about in a wheel-chair since five years old. 打5岁起，他就不得不坐着轮椅四处走动。这里坐轮椅走动实际上表达的是一种生...
has。带有 since 从句或短语的主要分句通常要使用现在完成时态，不过有例外。夸克说，当主句所表达的是一个习惯性的动作时，就可以用一般现在时，甚至现在进行时。He has to move about in a wheel-chair since five years old. 打5岁起，他就不得不坐着轮椅四处走动。这里坐轮椅走动实际上表达的...
百度试题 结果1 题目Complete the sentences.Use "for" or "since."Mary has had a cat中two weeks. 相关知识点: 试题来源: 解析 for 反馈 收藏
百度试题 结果1 题目Complete the sentences.Use for" or since."Martin has had a cold three days. 相关知识点: 试题来源: 解析 for 反馈 收藏
百度试题 结果1 题目II.用for或since填空1. He has had his bike six years. 相关知识点: 试题来源: 解析 II. 1. for 反馈 收藏
前面一个是现在做了什么，后面一个句型是过去做了什么。造句:kelly has been to beijing since she graduated from college in wuhan .
百度试题 结果1 题目选用for 或 since填空。Nancy has had the biketwo months ago. 相关知识点: 试题来源: 解析 since 反馈 收藏
I haven't seen her since last week. He has been working here since 2010. Since you arrived, everything has changed. I've known her since we were in school. Since the beginning of the year, he has improved a lot. Show examples from the web [+] ...
since后面为什么不用完成时.but ever sinc he moved in,he has had trouble with cars and their owne
1. Mr. Brown has had his TV ___15 years. 2. I've taken driving lessons ___ last month. 3. My friends haven't visited me ___ my birthday. 4. We haven't used our car ___ long time. 5. She hasn't had a good cup of coffee years. 6. Tom has...