1 . weightlessness

2 . differ

3 . overbalanced

4 . absentees

5 . dismounted

6 . businesslike

7 . preoccupied

8 . competition

9 . planning

10 . lonely

1.When you travel into space, you can eat and drink in ___weightlessness___. (WEIGHT)

2.How do you ___differentiate_____ the real painting from the fake one ? (DIFFERENT)

3. He ____overbalanced______and fell into the water. (BALANCE)

4.All the ___absentees_____from the last lecture were not allowed to attend (ABSENCE) the interview for the coming project.

5.Ann ____ dismounted___ and picked up her riding hat. (MOUNT)

6. Jim is very disorganized and not very ____businesslike____ . (BUSINESS)

7. You look rather _____ preoccupied__ . Are you worried about something? (OCCUPY)

8.He was the only student to be awarded the special prize in reciting poetry____competition.___ (Compete)

9.He is___planning____ to have completed all his coursework by next week. (Plan)

10.If you felt ___lonely____ ,you should have given me a ring(lone)