Mr. Smith would have come to see you if it had been possible, but he __________ so busy.
| A．was | B．had been | C．has been | D．were |
Let those in need ________ that we will go all out to help them.
| A．to understand | B．understand |
| C．understanding | D．understood |
They might just have a place ______ on the writing course—why don't you give it a try?
| A．leave | B．left |
| C．leaving | D．to leave |
(2013·浙江，7)________ how others react to the book you have just read creates an added pleasure.
| A．Hearing | B．Hear |
| C．Having heard | D．To be hearing |
(2013·安徽，32)________ in the early 20th century, the school keeps on inspiring children's love of art.
| A．To found | B．Founding |
| C．Founded | D．Having founded |
I stopped the car ________ a short break as I was feeling tired.
| A．take | B．taking |
| C．to take | D．taken |