Singular vs. Plural
Complete with past simple or present perfect: ____ you ever _____ a panda? (see)
have seen
the past simple of "buy"
bought
The past simple of "fly"
flew
The past participle of "teach"
tought
Change the words in parathensis into pronouns: Do you remember (her her dog)?
Do you remember it?
The past simple of "put"
put