单选题 Those who wish to schedule their annual check-ups can call us and make ______ in advance.
【正确答案】 A
【答案解析】[解析] 词汇：名词
1．这是一道词汇选择题，选项均为名词。
2．动词make和A选项appointments组成固定搭配。意为“预约”。