--in 1936,Harvard is one of the most famous universities in the United States

--in 1936,Harvard is one of the most famous universities in the United States
a.Being founded b.It was founded c.Found d.Founding
There is still much __can be improved about it
a.which b.that c.if d.what
This company was the first __portable radios as well as cassette tape recorders in the world.
a.producing b.to produce c.having produced d.produced
He told me the problem might be the way__.
a.to communicating b.in that I communicate c.in which I communicate d.I was communicated
Travellers can go by car or train to visit a famous section of the wall called badaling,__is 85 kilometers north of Beijing
a.that b.which c.in which d.where