With the development of science,more new technology to the fields of IT.
| A．has introduced | B．is being introduced |
| C．is introduced | D．was introduced |
40. I could have offered you some help last weekend, but I ______ with my work at that time.
| A．would be occupied | B．was occupying | C．had been occupied | D．was occupied |
39. ______ choice you make matters little to the final result of the discussion.
| A．No matter what | B．Whichever | C．Whatever | D．No matter which |
38. You can’t imagine ______ when they heard the news ______ their team had won.
| A．how excited they were; that | B．how exciting they were; which |
| C．how they were excited; that | D．how they were exciting; which |
37. I would rather you ______ in my school, Mom.
| A．not work | B．not worked | C．didn’t work | D．not working |
36. How can you know whether you will succeed ______ you never try?
| A．in case | B．when | C．unless | D．even if |