Questions 19 to 21 are based on the conversation you have just heard.

A．She’ll help look for the man’s wallet.
B．She’d like to pay for the man’s lunch.
C．She doesn’t have much money to lend the man.
D．She’ll help the woman with her physics project.

A．How the President proposes new laws.
B．How a bill is passed by lawmakers in Congress.
C．How the President can reject a proposed law.
D．How lawmakers can force the President to sign a bill.