1. 如果主句的时态是一般现在时,宾语从句的时态根据具体情况来确定。 Please tell us where we’ll go fishing tomorrow. Do you know when Mr. Smith moved here? 2. 如果主句的时态是...
2. have (has) been to表示"曾经去过某地",不能与for+一段时间连用。 She has been to Shanghai three times.(她已经不在上海,只说明她曾经去过。) 3. have (has) been in/at表示"一直...
如: have a good rest before the exam; during the exam, let go of the difficult problem and move on to the next; after the exam, have fun with friends to relax. 2) 增加建议...
Great changes have taken place since you left. 宾语从句的时态的用法则是:当主句是一般现在时时,从句的时态可根据从句的时间状语来任意选择;当主句是过去时时,从句的时态则只能用过去时态的某一种,但从句为客观真理时只能用一般现在时。如: She says (that) she ha...
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