{01}Up to Tuesday"s attack, the worst school shooting in the U. S. was in March 1998 in Jonesboro,________ two boys, aged 11 and 13, shot and killed a teacher and four girls.
A.while
B.where
C.when
D.then
解析: 本题关键是辨明横线后为完整句“two boys,aged 11 and 13,shot and killed a teacher and four girls"’,其中aged 11 and 13为插入语。 本题选C。 {02}John did the task____ his sister.
A.as good as
B.as better as
C.as well as
D.as best as
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