19．A．too         B．to          C．two                D．also

18．A．ask        B．buy       C．have                D．think

17．A．1ike      B．1ikes    C．to like             D．1iking

16．A．exciting   B．boring    C．difficult         D．different

15．A．young   B．big        C．small              D．long

14．A．colors     B．sorts      C．books             D．movies