Many people in the west make ________ a rule to buy Christmas presents for their relatives and friends.

____should I clean out the refrigerator?—Twice a week.[ ]

Do you love reading Guo Jingming’s novels? —Of course I do，but Ithem for a long time because I’m always busy．

“All the students don’t work hard.” means “_________”

If Joe’ s wife goes to the party, _______.