Page 874 - Wordsmith A Guide to College Writing

2. We walked into the house, and May and Chad were sitting
there with smug smiles, as if they know a secret that we didn’t.

The problem in this sentence is

a. a shift in voice

b. a shift between past and present tense

c. a past tense verb that needs to be further in the past

(past perfect)

3. In the stands, hockey fans danced the Hokey-Pokey and the

Macarena while hot dogs, soft drinks, and beer were sold by

vendors.
The problem in this sentence is

a. a shift in voice

b. a shift between past and present tense

c. a past tense verb that needs to be further in the past

(past perfect)

4. Out in the yard, the two dogs worried a small rodent that had

been caught by them.
The problem in this sentence is

a. a shift in voice

b. a shift between past and present tense

c. a past tense verb that needs to be further in the past

(past perfect)