English Skills 10th Edition by John Langan, Zoe Albright

Exercise 5

For each of the italicized verbs, fill in the three missing forms in the following order:
( a ) Present tense, which takes an -s ending when the subject is he, she, it, or any one person or thing (see pages 459-460)
(b) Past tense
(c) Past participle-the form that goes with the helping verb have, has, or had
After completing the activity, compare answers with a partner.
EXAMPLE
My uncle likes to give away certain things. He (a) gives old, threadbare clothes to the Salvation Army. Last year he (b) gave me a worthless television set whose picture tube was burned out. He has (c) given away stuff that a junk dealer would reject.
I like to freeze Hershey bars. A Hershey bar ( a ) __________ in half an hour. Once I ( b ) a bottle of Pepsi. I put it in the freezer to chill and then forgot about it. Later I opened the freezer and discovered that it had ( c ) __________ and exploded.