——Tommy, do you know if Frank ______ to the theatre with us this Sunday if it ______?——Sorry, I have no idea.
A:will go, is fine
B:goes, is fine
C:will go, is going to be fine
D:goes, will be fine
对自己的行为负责,需要我们在行动前_______,行动中_______,行动后__________。( )
甲、乙两同学骑自行车从A地沿同一条路到B地,已知乙比甲先出发,他们的骑行路程s(km)和骑行时间t(h)之间的函数关系如图所示,给出下列说法:(1)他们都骑了20km;(2)乙在途中停留了0.5h;(3)甲、乙两人同时到达目的地;(4)相遇后,甲的速度小于乙的速度.根据图象信息,以上说法中正确的有( )
____