His bright tie made him in the crowd.
A．stand by B．stand for C．stand out D．stand up
In the near future, more advances in cloning technology by scientists.
A．are making B．are made C．will make D．will be made
He had collected plenty of historical evidence, proved that humans used to have different sleeping patterns.
A．that B．which C．it D．what
I can’t see any reason to use cash anymore it’s so much easier to use other means of payment.
A．while B．therefore C．although D．since
It has been announced that candidates remain in their seats until all the papers have been collected.
A．shall B．can C．should D．must
Although I’m a very tolerant person, I hate when people try to push my limit.
A．this B．that C．it D．one
