Fill in the blanks with the expressions given below Change the form where necessary.Each expression can be used only once. （one point each）back off  is bound to make allowances for pay a big price  resort to   invest...with  give way to   be attached to  cling tobe liable to saddle with  in favor of  speculate about  be measured in   come in handy（1）Because women often restrict their diet in an effort to control weight,they may not consume enough iron-rich food and ____ experience an iron deficiency ____ （2）Some reform advocates ignore the impact of class size on student achievement,and they are ____ what they could as a priority teach effectiveness. ____ （3）Because of easy access to the Internet ，the new breakthrough to create something truly creative ____ happen anytime now. ____ （4）Indeed,if teachers want to ____ how far students might get in life,a better measurement than grades might be how hard the students try.（5）Nature has ____ these animals ____ a capacity for not showing fear.