Used as a verb, as in "___ a ride," the word "thumb" means to do what?

In 1933, Warner Bros. tied its film ads to FDR's new programs by promising "a New ___ in Entertainment." What word comp… Which future star appeared as a toddler at the end of her mother Judy Garland's 1949 film "In the Good Old Summertime"? Which three-letter verb, common in British usage, means to rent out or lease, as in "rooms to ___"? Which word is the opposite of "fill" as a verb and of "full" as an adjective? As a young wife in the 1950s, which future first lady managed the accounts for her family's agricultural business? As Academy president, which swashbuckling star hosted and presented every award at the first Academy Awards in 1929? Which rock singer played Althea Flynt in the 1996 film "The People vs. Larry Flynt"? In the 1949 film "Little Women," which actress played Amy, who marries Laurie after Jo rejects him?