问题

Without proper lessons, you could _______ a lot of bad habits when playing the piano.

A:give up
B:catch up
C:pick up
D:keep up

正确答案是：

同类题型

You _____ come earlier The bus left amoment ago

下列各句中，加横线的成语使用不恰当的一项是 ( )

Most ptohappen.

________ the calculation is right, scientists can never be sure that they have included all variables and modeled them accurately

Not only his parents but also his brother________ to the Summer Palace They haven’t been back