How many points did Dow plunge？A．50.B．115.C．150.D．15.

I wonder how many years ago _______.A.did you father retireB.your father retiredC.has yo

How many per cent did shares of IBM almost plunge？A．20B．30C．40

How many dollars did IBM and other technology companies pay for the year 2000？A．Tens of th

How many miles did the police go before catching the girls？A．14.B．26.C．46.D．100.

How many hours of housework did men do every week in the 1970s？ A. About 23. B. About

How many teeth did the dentist take out?