You may catch up with others__________you work a little harder.
| A．so long as | B．so far as | C．however | D．unless |
Believe it or not, the matter, ________ we argued for a long time, was in fact related to our study.
| A．over it | B．with them | C．about which | D．for which |
The town _______ we visited last week is the one _______ the famous painter was born.
| A．where; which | B．in which; that |
| C．that; where | D．where; where |
The bridge was built in memory of the adventurer who was believed ______ the valley.
| A．to have been discovered | B．to discover |
| C．to have discovered | D．having been discovered |
______, you were always there to help, and I will always treasure that.
| A．Hopefully | B．Regretfully | C．Unfortunately | D．Thankfully |
If a book is ______, we should try to read it attentively.
| A．worthy reading | B．worth reading |
| C．worthy to be read | D．worth being read |