Everyone wants to reach the top of the mountain，but all the happiness happens while you it．（ ）
| A． |
climb |
B． |
climbed |
| C． |
are climbing |
D． |
have climbed |
The volunteers_____the sick kids in the hospital on weekends． （ ）
A．look afterB．look for
C．look through
Tina is as_____as her sister， Tara．（ ）
A．outgoingB．more outgoing
C．the most outgoing
The toys are really old，_____I still want to keep them．（ ）
A．orB．andC．but
We should brush our_____every day．（ ）
A．toothB．teethC．hand
Yuan Longping is very creative． We all look up to_____．（ ）
A．itB．himC．her