Their use was limited by laws, the first of which ______ the 14th century.
| A．dates back to | B．dated fro |
| C．dates back | D．dating back to |
______ you are alone at home, why don’t you go with us to the party?
| A．Even though | B．As though | C．So that | D．Now that |
Can you ___me to call Mr. Smith this afternoon? You know how forgetful I am.
| A．permit | B．persuade | C．remind | D．allow |
It was quite ___accident that I met him; he was homeless and ___rags at that time.
| A．by; in | B．on; in | C．at; by | D．in; in |
You should pay a lot of attention to children’s ideas; sometimes they ___be really creative.
| A．must | B．can | C．need | D．should |
He is very humorous, while his brother is rather serious. That is ___their difference lies.
| A．why | B．where | C．how | D．when |