用所给词的适当形式填空
____ Every day Li Ming____________（go）home at five o’clock．
____ What about _______________(go) ___________________ (swim) tomorrow?
____ I like to eat _______________________ (tomato) very much.
____ I ____________________________ (be) 13 years old next year.
____ Let’s go        ____________  (shop) tomorrow.
____ It’s easy __________________________ (answer )this questions.
____ Would you like______________________  ( go ) to my party this weekend?
____ Shanghai is __________________________ ( big ) than Hong Kong.
____ Is Mrs Green __________________________ ( clean ) the house at the moment?
____ Liu Xiang likes ____________________________ ( run ) very much.

下列属于我国特产珍稀动物的是（　　）

如图所示，质量M=1kg且足够长的木板静止在水平面上，与水平面间动摩擦因数μ₁=0.1．现有一质量m=2kg的小铁块以v₀=3m/s的水平速度从左端滑上木板，铁块与木板间动摩擦因数μ₂=0.2．重力加速度g=10m/s²．求：