Will you join us to play basketball on Saturday afternoon—_________, but I promised to go swimming with Eric.

It is said that to teach a man fishing is better than _____ him fish.

The present situation is very complex, so I think it will take me some time to ____________ its reality.

The computer system proved to be powerful some shortcomings

What’s your idea?–My opinion is _____ ____ happens, we should not stop the reform