Resposta:
a) The money ___WAS___ on the desk last week.
b) We ___WERE____ together last night.
c) I ____WAS_____ the one who told him the truth.
d) It ___WAS____ a good idea to skip class.
e) We ___WERE____ not happy about his behavior.
f) My teachers __WERE____involved in the learning development.
g) He ___WAS____ short and had black hair.
h) These photos_____WERE____ taken by George.
i) She___WAS____ looking for you.
j) She ___WAS_____ 20 years old when she moved to Orlando.
:)