Adjective Clauses

Choose all the correct completions for each sentence.

1.We enjoyed the singers __________ gave the concert.
a.who
b.that
c.(nothing)
d.whom
Choose all the correct completions for each sentence.

2.The children ______ attend Lake Forest Academy are very wealthy.
a.who
b.that
c.(nothing)
d.whom
Choose all the correct completions for each sentence.

3.The driver ____ I helped was very upset about the accident.
a.who
b.that
c.(nothing)
d.whom