(2020原创)It is already late. But I cannot fall a________ after drinking coffee tonight.
(2020原创)With the development of our s________， people's life becomes richer and richer.
(2020原创)I think you should find a(n) ________ way to solve this problem instead of complaining all the time.
A.awful B.proper C.difficult D.upset
(2020原创)I haven't ________ my little sister. I don't know whether she is OK or not.
A.heard from B.heard of C.come from D.thought of
(2020原创)Tom was ________ from the meeting this morning, because he had a fever last night.
A.different B.absent C.separated D.similar
(2019石家庄40中二模)As students, we are ________ to respect the elder and protect the young.
A.received B.forgotten C.refused D.required
