4．I __________my teacher carefully，but l __________nothing．A． listened，listenedB． heard，listened toC．listened to，heardD． listened to，listened
4．I __________my teacher carefully，but l __________nothing．
A． listened，listened
B． heard，listened to
C．listened to，heard
D． listened to，listened
相关考题：
The music that Americans are used to ______ to might sound strange to someone from another culture.A、listenB、be listenedC、listeningD、listened
Employers must consider all candidates impartially and without bias．A:immediately B:correctlyC:fairly D:carefully
Here you can see the food compactly stored in a pressurized tank.A:densely B:inexpensivelyC:quickly D:carefully
Here you can see the liquid food compactly stored in a pressurized tank.A:denselyB:inexpensivelyC:quicklyD:carefully
Before using your new pressure cooker, read the following （） carefully.AnoticesBordersCadvertisementDinstructions
考虑EDTA 的酸效应与金属离子的配位效应时，配合物的条件稳定常数的正确描述有A．lg K'f (MY) = lg Kf (MY)B．lg K'f (MY) = lg Kf (MY)－lg αY(H)－lg αM(L)C．酸度越高，其lg K'f (MY) 值越大D．酸度越高，其lg K'f (MY) 值越小