Each application letter should be ________ by a stamped and addressed envelope, so that we can reply to you in time.
| A．stored | B．bought | C．kept | D．accompanied |
Look over there--- there’s a very long，winding path _____up to the house．
| A．leading | B．leads | C．led | D．to lead |
I'm afraid he’s more of a talker than a doer, which is ____ he never finishes anything．
| A．that | B．when | C．where | D．why |
They are broadening the bridge to ____ the flow of traffic．
| A．put off | B．speed up | C．turn on | D．work out |
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 |