Whose shirt is this—It ______ be Li Lei’s. It is too big for him.

“It’s a secretPromise no one else would know it”, he lowered his voice and whispered _____no one could overhear it[ ]

It’ s said that they will______ building a big mall here.

What do you mean saying “The boy is overgrowing”? — I mean that he is tall his age

rried to her office by taxi, only_____ that the key had been left at home