Joan together with her parents ____ going to visit the Summer Palace this Saturday.
| A．is | B．was | C．are | D．were |
The traffic problems we are looking forward to seeing _____ should have attracted the government's attention.
| A．solving | B．solve | C．to solve | D．solved |
_______ is believed, all the scientists subscribe to the view ______ the increase in the earth’s temperature is due to the burning of fossil fuels to produce energy.
| A．It; \ | B．As ; that | C．It; if | D．As; whether |
______ the fantastic sight, I stayed at the top, _______.
| A．This was ; watching | B．Because this was ; watched |
| C．Not having seen; watching | D．Having not seen; |watched |
----I can’t make myself _______ in English
----Don’t lose heart. You are sure to make others ____ you in English if you keep on studying it.
| A．understood; understanding | B．understood ; understood |
| C．understanding; understood | D．understood; understand |
__________ can you expect success.
| A．By working hard | B．Working hard |
| C．Only with hard work | D．Through hard work |