A．Two years.B．Three years.C．Four years.D．Five years.

How long has Carlos been in business？A．Four years.B．Eight years.C．Thirteen years.D．Thirty

For how long is a limited license valid？A．Less than one year.B．Four years.C．Five years.D．T

How long did Ethbell teach minority students？A．8 years.B．16 years.C．20 years.D．30 years.

The civil war in Nepal probably lasted forA．more than 20 years.B．12 years.C．20 years.D．10

How many people were killed in the shelling of Yeonpyeong？A．Two.B．Three.C．Four.D．Five.

How many kinds of travel books are mentioned in the passage？A．Two.B．Three.C．Four.D．Five.