![](https://cos-cdn.shuashuati.com/pipixue-web/2020-1231-2005-12/ti_inject-812ce.png)
Select the correct sentences.
A.
A large group of young people was hanging around the corner of the street.
B.
His singlemindedness and a desire to win was responsible for his success.
C.
Good planning and motivation are vital for academic success.
D.
Although Ms. Smith was wealthy, she made poor use of it.