【简答题】在细胞质内储藏有大量聚β-羟基丁酸(PHB)的细菌有______、______、______和______等。
【单选题】William told his wife ______.
A.
to have his shoes shone
B.
to have his shoes shined
C.
to have his shoes shining
【单选题】— Are your shoes _____________, Mary? — No, they're _____________. [ ]
【单选题】进入现场工程材料检查必须有产品合格证和什么?
【简答题】his shoes dirty or clean are
【单选题】His shoes are ___dirty ____he has to wash them .