TOEIC & TOEFL English learning forum
English as a Second Language
English Vocabulary, Grammar and Idioms
April 6, 2016, 4:31pm
How long are you waiting?
How long have you been waiting?
How long are you living in this house?
How long have you been living in this house?
Since when are you waiting?
Since when have you been waiting?
Please correct and comment.
April 6, 2016, 7:11pm
April 7, 2016, 5:08am