I have been living in the United States for twenty years, but seldom _____ so lonely as now．

A．have I felt          B．I had felt            C．I have felt           D．Had I felt

Eric received training in computer for one year, _____ he found a job in a big company．

A．after that           B．after which          C．after it             D．after this

Health problems are closely connected with bad eating habits and a _____ of exercise．

A．limit              B．lack                 C．need               D．demand

---Excuse me, could you tell me the way to the British Museum?

---Sorry, I'm a stranger here．

---_______．

A．Thanks，anyway  B．It doesn't matter      C．Never mind         D．No problem．

The information on the Internet gets around much more rapidly than ____ in the newspaper．

A．it                 B．those               C．one               D．that

Help others whenever you can ______ you will make the world a nicer place to live in．

A．and                B．or                  C．unless              D．but

The crowd cheered wildly at the sight of Liu Xiang, who was reported ______ the world record in the 110-meter hurdle race．

A．breaking           B．having broken       C．to have broken    D． to break

---Turn off the TV, Jack．____ your homework now?

---Mum, just ten more minutes, please．

A．Should you be doing                              B．Shouldn't you be doing

C．Couldn't you be doing                             D．Will you be doing

Don't be _____ by products promising to make you lose weight quickly．

A．taken off           B．taken out              C．taken away         D．taken in

We had to wait half an hour _____ we had already booked a table．

A．since              B．although               C．until               D．before