Thank you for your help. ______ for your help, I wouldn’t have succeeded in my experiment.
| A．If it is not | B．Were it not |
| C．Had it not been | D．If they were not |
Maybe you could be an inventor ---- maybe even good enough to ______ an idea for the next iPhone or new medicine for cancer.
| A．put up with | B．keep up with | C．catch up with | D．come up with |
_______ excited his parents most is that he had passed the entrance exam and was admitted into his dream college.
| A．That | B．What | C．Which | D．It |
With ______ successful launching of Tiangong-1, China’s space dream has taken ______ step closer to reality.
| A．the; a | B．/; a | C．a; the | D．the; / |
The speed ______ Tom drives his car is too high.
| A．in which | B．at which | C．at that | D．in what |
With trees and grass_____ about 35％ of the urban area，the city of Hefei has taken on a new look.
| A．covered | B．being covered | C．to be covered | D．covering |