Помогите пожалуйста, срочно! Даю много! Проооошу..
put the verbs into past simple or past continuous

last week we ____ a composition (write)
I ____ to Boston yet (not be)
The pupils _____ the new rule last Monday ( not understand)
Kate and Jess ____ a nice cat recently (buy)
Recently my friend and I ___ an UFO (see)