0 Before he died , he (be) _______ill for several days
11 take these pills and you (feel)______better then, Ba
12 Ba and Phong ( know) ____ each other quite well for years
13 the Brown(travel) ____ to Asia Many Times
14 The thief (steal) the bike when Mai (look) for some books in the shop
15 John and I (be)_____pen pals for nearly three years
16 We used (write)____to each very month when we (be)______at secondary school
17 Maria(stay)_____with us at the moment. She (be)____my sister's friend