We have no doubt that if the students’ interest in the subject is motivated, they will ________ the challenge and commit more of their time and energy to their studies.
| A．face up to. | B．keep pace with. |
| C．put up with. | D．live up to |
--- ______ was it ______ they discovered the entrance to the underground palace?
--- Totally by chance.
| A．How; that | B．What; that | C．When; when | D．Where; that |
--- Some people believe that robots will take over the world one day.
--- What if that is the ______?
| A．thing | B．condition | C．case | D．end |
______, Jack couldn’t get the door open. He had to dial 110.
| A．As he might try | B．Try as he might |
| C．As might he try | D．Might as he try |
I think that he must be looking up the information in the library, ______?
| A．isn’t he | B．don’t I | C．do you | D．must he |
I hope she gives up her job ______ it makes her crazy.
| A．before | B．until | C．as soon as | D．in that case |