Cultural exchange ______ better understanding between people in different countries.
| A．allows for | B．calls for | C．makes for | D．goes for |
______ students up to 2, 000 , the school has built another laboratory．
| A．As | B．For | C．with | D．Since |
Every possible means _______ to prevent the crash , but the computer doesn’t still work．
| A．is used | B．are used |
| C．has been used | D．have been used |
Have you made up your mind ________ abroad? I advise you to consider it carefully.
| A．study | B．to study | C．studying | D．studied |
________ get a complete picture, more information is needed.
| A．So as to | B．So as not to | C．In order not to | D．In order to |
The USA is a large country in ________ many different dialects are spoken.
| A．that | B．which | C．where | D．it |