Mrs Black had such a wonderful time________she visited her friends in Sydney last year.
He ______ in Shanghai University for four years before he ______ Beijing.
Mary said it was at least five years since he ______ a good drink.
Xiao Pei said she ______ Hainan for 3 months.
--What are Mr and Mrs Black doing ? ---They _____ tea in the garden.
My mother often asks me _____early .