1.-How many times--you--(be) to the Great Wall?-Only once.I-

1.-How many times__you__(be) to the Great Wall?-Only once.I__(go)there 3years ago.2.I think you__(forget)the date.haven't you?3.How Often___you__(drink)milk?4.Look!My little brother __(feed0the lambs.5.Jane has finished __(write)to the letter.Let's__(taking)her to the concert.6.They __(have)an English class at 9o'clock yesterday morning.7.She__(be) to the Great wall twice.