单项选择题

You cannot be（）careful when driving a car on the superhighway.

A．very
B．too
C．so
D．enough

相关考题

This is one of the most beautiful songs（）I have ever he...

单项选择题This is one of the most beautiful songs（）I have ever heard.

A．what
B．which
C．that
D．as

The construction of the laboratory（）by the end of the y...

单项选择题The construction of the laboratory（）by the end of the year.

A．will complete
B．will have completed
C．will be completed
D．will have been completed

The patient knew nothing about his illness（）the doctor ...

单项选择题The patient knew nothing about his illness（）the doctor told him.

A．after
B．while
C．until
D．since