I really appreciate_____ to help me, but I am sure that I can manage by myself.
| A．you to offer | B．your offering |
| C．it to offer | D．it offering |
Although the first part of the book is easy， the rest ______.
| A．are difficult | B．has proved difficult |
| C．is supposed difficult | D．have been found difficult |
When and where to build the new factory ____yet.
| A．is not decided | B．are not decided |
| C．has not decided | D．have not decided |
Not only Tom but also his wife ____fond of watching television.
| A．are | B．were | C．be | D．is |
It ____I who _____leaving for London.
| A．is…is | B．am…is | C．is…am | D．am…am |
Mr Smith， together with his children， ____arrived.
| A．are | B．has | C．is | D．have |