Flowers suddenly burst out everywhere on the same day every spring, as if they in tune with one another.
A．are B．were C．have been D．are to be
The kangaroo was lucky. It just missed .
A．catching B．to be caught C．to catch D．being caught
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
