The Chinese mainlanders from selected cities areallowed to visit Taiwan______ individual tourists.

The place _______ the bridge is supposed to be built should be _______ the cross-river traffic is the heaviest.

What ______ the doctors most was that they could not find the cause of the disease.

When asked by news reporters, the film star of stage and screen ________ that he would pay a visit to Europe next week.(2012· 山东岚山一中月考)

I heard from my old friends just now and I was eager __the letter to read it.[ ]