While many believe Benjamin Franklin to have discovered electricity, recent findings seem to show _____.
| A．anyway | B．otherwise | C．somehow | D．so |
______ twice a year，whether it is a car or a truck，is the rule that every driver must obey in this city.
| A．Examining | B．Examined |
| C．Having examined | D．Being examined |
—Please ______ us in the discussion.
—I'd like to，but I'm ______busy at the moment.
| A．attend；too | B．join；much too | C．take part in；much too | D．join；too much |
—Johnson，come and look at the sea！It's beautiful，isn't it?
—Absolutely！If only I ______here by the sea.
| A．had lived | B．lived | C．live | D．will live |
It is you as well as your wife that ______ your son's bad performance at school.
| A．is to be blamed for | B．are to be blamed for |
| C．are to blame for | D．is to blame for |
These problems，______ will seriously affect the growth of teenagers and even the nation's future.
| A．not if solved properly |
| B．if solved properly |
| C．not if properly solved |
| D．if not solved properly |