平衡合拢包括（）的平衡合拢和机要袋的平衡合拢。

从以下4个小题中，选出与各句中画线部分意思相同或相近、并能替换画线部分的选项。（共4小题，每小题1分；计4分）

A. finish      B.fix it up       C. make her happy     D. cheap

小题1:My family and I need to stay in an inexpensive hotel or an apartment.
小题2:My bike broke down on the way home. Luckily, Uncle Tom helped me repair it.
小题3:They often talk with each other in English first, but then end up speaking in Chinese.
小题4:Hi, Dad. Mum is upset now. Why don’t we do something to cheer her up?