It‘s to skate on such thin ice 适当形式填空

It's a good idea to learn ____(skate) on the real ice It‘s to skate on such thin ice 适当形式填空 It's strong enough for you to skate on --------(safe),safe用什么形式 the ice is very thin.it's very easy to drop____when you skate on(填into/out/off/down) It's not difficult ____(learn) to skate. the ice is too thin ------ A to skate on it B skating on it C to skate on D skating on可不可以加it The snow is too t___ It's very dangerousto skate on it the ice is too ----.it is very dangerous to skate on it 填什么 The ice is too thin.You can't skate on it.改为同义句The ice is ( )thick ( )for you to skate on it. You can't skate on the ice.It's too t___. 为什么不是the ice is too thin to skate on （it)? 英语中句末什么时候代词要加出来?比如It's such thin ice that we can't skate（on).The talk is worth listening (to).Thank you for your advice.It's worth taking (it). ____is very interesting to skate on the real ice.A it B It C There D This the ice in the lake is about one centimeter ____.it's not strong enough to skate on .A .long B.high C.thick D.wide以及为什么其他三个不能选 四个单词意思用法都解释一下 The ice in the river is about one meter __.it is strong to skate on.(long high thick wide) The ice is too thin____.A.to skate B.to skate on C.to kate on it请说明为什么不选A和C请另外加上2个例子 用can,must,can't,mustn't填空1.The children ____ play on the road.It's very dangerous.2.---____ you skate on real ice?---Yes,I can.It's easy.3.---Who's that girl?---It ____ be Mary.Mary has gone to Beijing.4.As students,we ____ work hard at school. What is the _(different) between the two girls?The doctor saved the old man's _(live)It's _(possible) for me to skate on real ice.It's too hardHe tried his best to carry the boy to the _(safe)We are _(hold0 啊sportsmeetingnextmonthFujian is in the _