The CD player will go wrong if you don’t use it

.Man’s shopping can be and often iscompleted in five minutes，which is less than a quanrter ________。

Candy was shy in the past, so she took up singing to _________ her shyness.

Excuse me, is this ______ ipad— No, it’s not mine. It’s my friend’s.

How beautifully she sings! I have never heard________.