—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

 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

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

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

 —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

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

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

 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

 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

 —Have you handed in your schoolwork yet?

—Yes,I have.I guess it _______ now.

A.has graded                                B.is graded

C.is being graded                           D.is grading

 Christmas is _______ special holiday when _______ whole family are supposed to get together.

A.the;the               B.a;a               C.the;a             D.a;the