6-1 and 6-2:
ANSWERS Verb + to + infinitive OR verb + gerund
6-3: Verbs + Object + To + Infinitive
ANSWERS Grammar 6-3: Verbs + Object + Infinitive
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Practice this grammar: quiz
LISTENING
ANSWERS Listening 6-1: Admirable Athletes
READING
ANSWERS - Reading 6-1: The Sedin Twins