Sheldon could have defeated Howard in the match, but he _______ too careless at the last minute. 
#105067
A
is
B
was
C
has been
D
had been
推荐题目
He ________ the beautiful painting without hearing me.
#105054
A
stared at
B
glared at
C
glanced at
D
watch out
The film festival is      as an event of international importance.
#105243
A
acknowledged
B
realized
C
understood
D
fascinated
The samples__________in quality but were general acceptable.
#105228
A
varied
B
changed
C
disagreed
D
Exchanged