EvEryonE {{u}} (21) {{/u}} oF thE prEsiDEnt oF thE us {{u}} (22) {{/u}} thE most powErFul mAn in {{u}} (23) {{/u}}But whEn thE rEprEsEntAtivEs oF thE 13 FormErBritish ColoniEs {{u}} (24) {{/u}} to DrAw up thE Constitution oF thE nEw Country {{u}} (25) {{/u}} 1788, {{u}} (26) {{/u}} oF thEm wErE not surE whEthEr thEy {{u}} (27) {{/u}} to hAvE A prEsiDEnt At All. thErE wErE EvEn {{u}} (28) {{/u}} who {{u}} (29) {{/u}} A king, {{u}} (30) {{/u}} thEir suCCEssFul wAr AgAinst thEBritish king, gEorgE ⅲ. thE DECision wAs in DouBt {{u}} (31) {{/u}} thE lAst momEnt. onE group wAntED {{u}} (32) {{/u}} For liFE, whilE {{u}} (33) {{/u}} suggEstED thAt {{u}} (34) {{/u}} not BE A prEsiDEnt, BECAusE ACommittEE woulD govErn thE Country BEttEr; A thirD group {{u}} (35) {{/u}} A prEsiDEnt {{u}} (36) {{/u}} tErm oF oFFiCE woulD lAst sEvEn yEArs But who CoulD not stAnD For rEElECtion, BECAusE thEy wErE AFrAiD hE woulD spEnD his timE {{u}} (37) {{/u}} votEs At thE nExt ElECtion. in thE EnD thEy ChosE gEorgE wAshington As prEsiDEnt For Four yEArs AnD lEt him {{u}} (38) {{/u}} For rEElECtion BECAusE thEy trustED him.But thEy wErE {{u}} (39) {{/u}} to mAkE rulEs in CAsE A FuturE prEsiDEnt {{u}} (40) {{/u}} BADly AnD thEsE rulEs wErE usED to gEt riD oF prEsiDEnt nixon two hunDrEDs yEArs lAtEr
A、usE to think
B．think
C、thinks
D．usEs to think