求英文达人帮我分析这几个句子错哪了(3)
用现在完成时,现在完成进行时,一般过去时填空.
1.Roy(hasvisited)YellowstoneNationalParklastyear.
2.In1872,Congress(maked)theYellowstoneareaapark.
3.(Have)you(saw)anygrizzlybearswhenyou(were)intheparklastyear?
4.Twoyearsago,we(havetried)tomakeareservation.