___________have complained about the dangerous playground.
A: Concerned parents
B: Parents concerned
C: c
D: d
A: Concerned parents
B: Parents concerned
C: c
D: d
举一反三
- Some parents are only concerned ______ their children's grades in studies. A: of B: at C: about D: for
- According to the interview, one of the disadvantages of living together with the parents is that parents tend to be over concerned about their children's life.
- My parents are greatly concerned about my ____________ (safe). Not until I got home ___________ (safe) did they feel ____________(relieve).
- Today people _____about the way the environment is damaged. A: being concerned B: had concerned C: are becoming concerned D: are concerning
- John<br/>warned his families to stay away from the windows, because he was<br/>______ glass flying from storm-shattered panes. A: concerned that B: concerned<br/>with C: concerned<br/>of D: concerned<br/>about