Making things worse are state laws that make it too easy to opt out(决定不参加) of what are supposed to be required vaccines for all children entering kindergarten。 Seventeen states allow parents to get an exemption(豁免), sometimes just by signin...
4. What happened to Pluto in 2006? It lost its planet status.
2. What will the man do tomorrow morning? A. Give Frank a bath. B. Cook Frank a meal. C. Take Frank to a vet. 3. What is the male speaker? A. A student. B. A president. C. A professor. 4. What does the man mean?
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