Camels were ____ better than horses for travelling a long distance.

While typing, Helen has a habit of stopping _____ to give her long and flowing hair a smooth.

---Students should devote most of their time to studying rather than playing computer games.                                                       ---________.No pains, no gains.

---How is your plan getting along?----I can’t carry on _____ any longer. Someone must help me.

Proper exercise is good for your health._____, too much is bad for it.