—Nicetoseeyou.I

問題詳情：

—Nice to see you. I _____ you for a long time.

—I _____ in Beijing. I’ve just come back.

't seen; have gone to  n't seen; was 

seen; were       seen;  have been to

【回答】

 B

知識點：動詞時態

題型：選擇題