It's easy ________(work)out the question

问题描述:

It's easy ________(work)out the question

to work
it 作形式主语,动词不定式作真正的主语.I saw Jack __________(cross)the road while Iwas talking on my mobile phonecrossingsee sb doing sth 看见某人正在做某事1.There are long ______(beach) to walk along in Hainan.2.My grandfather is going to have his _________(eighty)birthday party。beacheseightieth