The population of many Alaskan cities has ______ doubled in the past three years.
He‘d _________a volleyball court on the beach with stick.
They _______ Tom to record the hit single.
Eventually he gave in to the wish of the ________.
It is _______ that he has been addicted to the drugs and has difficulty quitting it.
Pudong Developmental Zone is no longer a rural area ________ it used to be.