A:took, took
B:have taken, took
C:took, will take
D:have taken, will take
2012年12月14日,河南省光山县一小学23名小学生被闵拥军用菜刀砍伤。这一恶性事件再次敲响了校园安全的警钟,各级政府高度重视,采取各种措施保证未成年人的生命安全。这是因为( )
读图,回答下列问题。
The children are having fun _________ on the beach(海滩).