Doctors strongly recommended that my father _____ more exercise regularly instead of sitting still before a computer all day long.
According to news reports, personal _____of guns in the USA causes a lot of trouble.
---I’m afraid I have to give it up.---Don’t be discouraged.Remember _____ sticks to his work will succeed one day.
Sometimes smiles around the world ________ be false, hiding other feelings like anger, fear or worry.
In the questionnaire, the subjects are questioned whether they ________ no smoking in the public area.
--- Do you think that the 11th Chinese National Games were a success ? --- Yes, ___! It couldn’t be ____ .