24. The children are playing ____________ in the garden now. (NOISY)
noisily
(The adverb form "noisily" describes how the children are playing.)
25. Jack has a very impressive coin ______________ which he proudly shows to his classmates. (COLLECT)
collection
(The noun form "collection" is appropriate for describing a group of coins.)
26. She ____________ to her younger brother on the phone now. (talk)
is talking
(The present continuous tense "is talking" indicates that she is currently on the phone.)
27. The students ___________________ at school last Monday. (not be)
were not
(The past tense "were not" correctly completes the sentence, indicating the students' absence.)