Napa Valley in the US is a famous wine region in the “New World”.()

There is a river in the valley，fresh flowers _________________.A、is on the banksB、were

The Silicon Valley is situated in ______.A．CaliforniaB．New MexicoC．FloridaD．Arizona

The presidential election in US is a direct election.（)

The Federal Reserve in the US is responsible for______.A．monitoring all banks in the count

Which of the following is NOT mentioned in the passage？A．Butterflies in profusion tell us

What is the current situation of job market in the US？A．Unemployment rate is still changin