There is no doubt _______ first aid(急救) is only a temporary form of help given to a patient.
| A．whether | B．if | C．that | D．which |
The two girls are so alike that strangers find ___ difficult to tell one from the other．
| A．it | B．them | C．her | D．that |
Find ways to praise your children often，____you’ll find they will open their hearts to you．
| A．till | B．or | C．and | D．but |
---I’m sorry I broke the vase．
---0h．______．It wasn’t very expensive．
| A．you’d better not | B．I’m afraid not |
| C．as you wish | D．that’s all right |
Take your time—it’s just ______ short distance from here to ___ restaurant．
| A．不填；the | B．a；the | C．the；a | D．不填；a |
animal
| A．achieve | B．anything | C．advance | D．anxious |