This is very serious problem什么意思知道的说下 谢谢

This is very serious problem什么意思知道的说下 谢谢 the___(library)is a very serious woman. The girl is very serious.The boy is serious,too.（同义句转换） this -----is very interesting. 翻译“Hunger is a very serious problem in many place.” Hunger is very serious problem in many places. my father is very serious .he doesn't smile at home 为什么serious用圆形 The girl is very serious.The boy is serious,too同义句转换 The girl is very serious,and_ _the boy This girl is very dangerous. 填空 :This movie is very (). This is very important Thing But this color is very this question is very difficult ( ) This __ is very interesting this is all very impressive This goldfish is very lovely. his father is very serious 同义句 _____ is his father ________ ---What is our head tearcher like,do you know? ---Oh,he is very kind____he looks very serious.---What is our head tearcher like,do you know?---Oh,he is very kind____he looks very serious.A.because B.thoughC.if D.