1.The workers spent 2 hours _to build_the subway.
2.Who _wrote_the article?Yang Li did.
3.I went to Hangzhou and _fell_ in love with it.
4._Predicted_the future can be diffcult.
5.They _will be able to_ come bank tommorrow .
6.I _thought_ you were in Qingdao.
7.When _did_you _leave_for Shanghai Next week.