How time flies! We should show love for our parents and make them how much they mean to us.
A:to know
B:knowing
C:knew
D:know
①没有月色的夜晚,天空一片黑暗。____
②女娲冒着生命危险,把天补上了。____
③人们一直过着快乐幸福的生活。____
④太阳每天从东方升起。____
ATP ⇌酶酶 ADP+Pi+能量.
下列各句中,划线的成语使用正确的一项是()