21．—Mom, I'm so tired. I can't walk any further.
—________， my dear. You can make it.
A．Come on B．No worry
C．That's impossible D．No problem
22．________total of 8,000 people applied for the job, but________total number of people who really got the job was no more than 50.
A．A; the B．The; a C．A; a D．The; the
