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
_______the match is lost? We can fight again!
A.Even though B.What though C.If though D.As though
These achievements_______ without the contribution of Qian Xuesen, a key leader of the New China's nuclear, missile and so on.
A.would have been unthinkable B.would not be unthinkable
C.would be unthinkable D.would not have been unthinkable
I made a fire ____up the room as soon as my father came in.
A.warm B.warmed C.to warm D.warming