I have lost one of my gloves. I _____ it somewhere. 
#89289
A
must drop
B
must have dropped
C
must be dropping
D
must have been dropped
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______ the local authorities put more attention to the safety of the children, more than 20 lives __________ in Gansu Province.
#86835
A
Should, would not be claimed
B
Had, would not have been claimed
C
Should, would not be cost
D
Had, would not have been cost
. He wasted a lot of time playing football, otherwise he ________the exam.
#88300
A
had passed
B
passed
C
would pass
D
would have passed