I called you, but nobody answered. Where ________ you?
A: is
B:are
C:was
D:were
如图所示的电路中,三个灯泡L1、L2、L3的电阻关系为R1<R2<R3,电感L的电阻可忽略,D为理想二极管.电键K从闭合状态突然断开时,下列判断正确的是( )
比一比。
白____ 田____
日____ 电____
—How does he go to school every day?
—He ____ to school every day.
长,共____画,第三画是____。