Solved: We arrived at the hotel quite early, in and had lunch. Chọn một đáp án đúng A checked B t [Others]

The sentence requires a past participle to complete the verb phrase "arrived...in and had lunch." The past participle is needed because the action of checking in happened before the action of having lunch.

A. "checked" is the past tense and past participle of the verb "to check." This option correctly shows the completed action of checking in.

B. "to check" is the infinitive form of the verb. This is incorrect because it doesn't indicate a completed action.

C. "was checking" is the past continuous tense. This is incorrect because it implies the action of checking in was ongoing at the time of arrival, not completed before lunch.

D. "checking" is the present participle (gerund). This is incorrect because it doesn't indicate a completed action in the past.