Where do polar bears usually hunt seals？A．On land.B．In open water.C．In openings in the sea

Where does the HR manager usually advertise blue－collar or clerical jobs？A．Local newspaper

听力原文：M: What do you usually do on Sundays？W: I usually go to church in the morning and

The following are endangered species EXCEPTA．tigers.B．whales.C．polar bears.D．some types of

According to the passage, which of the following statements is TRUE？A．Starving polar bears

What s the mission of Polar Bears International？A．Saving energy.B．Conducting scientific re

A:（)time do you have lunch？ B: I usually have lunch at 12.