Question

--Hey, Tony, You look so tired today.
---I __ until 12 o' clock last night for the math test.
A. woke up                 B. stayed up                C. grew up

Answer 1

B

考查动词短语的辨析。根据句意，可确定此处是stay up“熬夜”。wake up“醒来”；grow up“长大”。