56 （）

Directions: For this part, you are supposed to write an essay in English in 100～120 words based on the following information. Remember to write it clearly.你(Li Yuan)是班長(zhǎng)，準(zhǔn)備周末組織全班同學(xué)參觀歷史博物館(the Museum of History)。

　　·周六上午8點(diǎn)全班在校門(mén)口集合，乘公共汽車前往;

　　·參觀時(shí)，要認(rèn)真聽(tīng)講并記錄重要內(nèi)容;

　　·遵守參觀規(guī)定，如：館內(nèi)不得喧嘩、拍照，勿帶食品飲料入館;

　　·下周五之前交一份參觀報(bào)告。

The carpet has so many stains on it that it needs_______.

• A、replace

• B、to replace

• C、being replaced

• D、to be replaced