____ the instructions on the packet when you take the drug and the drug, I think, will work soon.
#92531
A
Follow
B
To follow
C
Following
D
Followed
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________, the boy couldn’t enter his house. 
#94032
A
Since the key has lost
B
The key been lost
C
Lost the key
D
Having lost the key
The boss________company I worked in two years ago has________in solving such kind of problem.
#92635
A
whose; many experiences
B
who; many experiences
C
whose; much experience
D
which; much experience