_______ comfortably in a chair, he was completely lost in a magazine.
| A．To sit | B．Sat | C．Sitting | D．Having sat |
I’m taller than Mike ___ head.
| A．to a | B．by a | C．for the | D．in the |
Our government should ____ stricter measures to make sure all food products meet the quality standards.
| A．adapt | B．afford | C．adjust | D．adopt |
Rome was not built in a day. You should set ____ goals and work hard to achieve them.
| A．alternative | B．considerable | C．subjective | D．realistic |
The company provides cheap Internet access._____ , it makes shareware freely available.
| A．In addition | B．In brief | C．In return | D．In common |
----- In recent years,___ problem of global warning has been very serious.
------That’s right. People are facing ____ number of natural disasters now.
| A．不填; | B．a; the | C．the; a | D．a; a |