People often keep dogs( ) their homes.A.guard B.to guarding C.guarding D.guards貌似是A.为什莫是C.

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People often keep dogs( ) their homes.A.guard B.to guarding C.guarding D.guards貌似是A.为什莫是C.
People often keep dogs( ) their homes.A.guard B.to guarding C.guarding D.guards
貌似是A.为什莫是C.

People often keep dogs( ) their homes.A.guard B.to guarding C.guarding D.guards貌似是A.为什莫是C.
答案：C
keep sb.doing sth 让某人一直做某事.

People often keep dogs guarding their homes. 人们通常养狗看家护院。
keep doing sth，保持……一直做某事。