______ is often the case in science, there is no simple answer
| A．That | B．As | C．When | D．Where |
Sarah, hurry up. I’m afraid you won’t have time to ______ before the party.
| A．get changed | B．get change |
| C．get changing | D．get to change |
To qualify yourself for this kind of new job, I recommend that you ______ some online courses.
| A．to take | B．taking | C．take | D．would take |
A wonderful idea ________ me that day when I met with a tough problem，.
| A．happened to | B．occurred to |
| C．seemed to | D．compared to |
Rather than carry out the project by itself, the company planned to _________ with other potential cooperators.
| A．catch up | B．come up |
| C．keep up | D．team up |
The driver started to speed up to ______ for the hour he had lost in the traffic jam.
| A．keep up | B．take up |
| C．make up | D．catch up |