Because of the lack of money, Peter had to go to Beijing ________ a train.
A.on B.by C.to D.with
I don't know how to get there. Mary doesn't know, ________.
A.too B.also C.either D.as well
The blue hat is 10 yuan and the black one is 10 yuan________.
A.either B.also C.just D.as well
I enjoy listening to classic music and my friend Mary enjoys it, ________.
A.either B.also C.too D.as well
My friend Frank sings well, and he is ________ good at playing the piano.
A.either B.also C.as well D.too
It can be ________ valuable or harmful, depending on how we deal with it.
A.also B.too C.either D.as well