1.Mary wishes she..took..(take) part in the festival at Perfume Pagoda next week.
2.Mary wishes she (can stay)..could stay...in Viet Nam longer.
3.I wish I (be) were...taller.
4.Is your friends used to (make).make...a phone call in the moring?
5.At the moment the population of the world..grown.(grow) at an increasing rate.
6.4.It's hard for me.concertrating..(concentrate) on working in such a noisy office.
7.While we. was doing..(do) the maths test, the fire alarm.was going..(go) off.