A．When you can’t recall something instantly, you should try your best to do it.
B．When yon can’t recall something instantly, you’d better have an operation on your mind.
C．The subconscious activities may go to work to dig up a dim memory.
D．Forcing yourself to recall may loosen your memory.

A．To set up an exclusive resort.
B．To build a marina.
C．To establish a summer retreat for musicians.
D．To start a training camp for a baseball team.