Jenny works hard as usual and it has___．She got the first in the final exam again．
| A．showed off | B．paid off | C．paid back | D．turned up |
No．50 High School is as new as No．48 High School．____, it is more beautiful．
| A．If anything | B．If something | C．If necessary | D．If so |
We students got lost in the forest and decided to remain ____we were and waited for the guide
| A．where | B．what | C．how | D．who |
—Oh my god! You__ wear slippers to attend the conference．
—I'm sorry I forgot there is a conference．
| A．must | B．can | C．should | D．shall |
In this experiment, the famous professor showed three different____ to the study of physics．
| A．means | B．methods | C．ways | D．approaches |