1.If Lin(know)........his Cather's teiephone number,i would give it to you . 2.If I Icamt Enghlish harder.I.......(pass)the yesterday. 3.If Nam......(see)her,he would have said 'hello'. 4.If my sister........(miss)the bus,she would have been late for her interview. 5.If it don't rain,I and my best friends.......(go)out.