Question

read the sentence: they all like the beach, but none of them swimming in the ocean. which choice best corrects the tense shift by modifying the bolded verb?
○ swim
○ had swam
○ had swimming
○ swum

Explanation:

The original sentence uses the present tense "like", so the second clause needs a matching present tense verb. "Swim" is the correct present tense form for the subject "none of them" (treated as plural here for agreement with the context of "all"). The other options are either incorrect tense forms or ungrammatical: "had swam" is a wrong past perfect construction (correct would be "had swum"), "had swimming" is not a valid verb phrase, and "swum" is a past participle that cannot function alone as a main verb here.

Answer:

swim