All the apartments have been sold out while the building is still _____.
A.Constructed
B.constructing
C.under construction
D.in construction
网友回答
C解析考查construct的相关短语和用法。under construction在建设中 A选项没有体现正在进行，只体现了被动；B项只体现了现在进行时，但没有被动含义，故错误。表示“正在建设”我们多用under construction.故选
C.