如图所示的电路中,电源两端的电压保持不变.闭合开关S后,滑动变阻器的滑片P向右移动,下列说法中正确的是
It's hotsummer. A. in B.at C.on
This girlto school on foot every day. A. go B.goes C.went
Excuse me, how can Ithe History Museum? A. get to B.gets to C.to get
-Whereyour friends? -They are at schoo(1) A. is B.are C.am
当你想知道这些物品是谁的时,问: A.Whose are these? B.Whose are those? C.Who are they?