Put the verbs into the correct form (infinitive with or without to or –ing form). 1 I must apologize for  (to sing) late. 2 Do you enjoy  (to dance)  ? 3 You should avoid (to swim) with a full stomach. 4 They don’t allow tourists (to photograph) in the museum. 5 She’d prefer (to solve) this problem on her own.

1 I must apologize for singing late. 2 Do you enjoy dancing? 3 You should avoid swimming with a full stomach. 4 They don’t allow tourists to photograph in the museum. 5 She’d prefer to solve this problem on her own.