不行喔！ 加了以前的時間點，只能用過去式。 另外go的三態是go, went, gone 如要使用現在完成式，可用在以下兩種狀況： 一、I have gone to Canada. 表示我去了加拿大，現在還待在加拿大。 二、I have gone to Canada many times. 表示我去了加拿大很多次，以後還會繼續再去。
The best thing about this video is that there are 50 sentences of detailed text content. Unfortunately, it cannot be directly copied and studied in the dictionary slowly in the notebook.
