1.æ¦å¿µä¸:
ç°å¨å®ææ¶è¡¨ç¤ºè¿å»åççæä¸å¨ä½å¯¹ç°å¨é æçç»ææå½±å,ä¹å¯æè¿å»å¼å§ 延ç»å°ç°å¨çå¨ä½æç¶æ.
è¿å»å®ææ¶è¡¨ç¤ºå¨è¿å»æä¸å¨ä½ææ¶é´ 以åå·²åçæå®æç å¨ä½,ä¹å¯æä»è¿å»ææ¶å¼å§ å°è¿å»ææ¶ä¸ºæ¢ç å¨ä½æç¶æ,å³âè¿å»ç è¿å»â.
2.ç»æä¸:
ç°å¨å®ææ¶ï¼ä¸»è¯ + have / has + è¿å»åè¯ ï¼è¯å®å¼ï¼
è¿å»å®ææ¶ï¼ä¸»è¯ + had + è¿å»åè¯ ï¼è¯å®å¼ï¼
3. æ¶é´ ç¶è¯"
ç°å¨å®ææ¶å¸¸ç¨çæ¶é´ ç¶è¯å
æ¬ now,today,tonight,this week,this year,already,yet,just,recentlyâ¦.
è¿å»å®ææ¶å¸¸ç¨çæ¶é´ ç¶è¯å
æ¬by,at,beforeçææç çè¯.
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