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8 I ''have studying/have been studying'' Mandarin for more than ten years, and I still find it difficult.
have been studying
7 Excuse me. I '' 've been waiting/have wait'' for this phone call all morning.
've been waiting
6 He has always ''been enjoying/enjoyed'' travelling
enjoyed
5 My brother ''has been travelling/ have been travelled'' around the world for the last two years.
has been travelling
4 I'' 've been playing/did played'' the guitar for as long as I can remember.
've been playing
3 Yes, we've ''met/been meeting'' each other before
met
2 I have been ''knowing/known'' Justin since we were at school.
known
1 Hi Tariq. I haven't ''seen/been seeing'' you for ages!
seen
