1.Tom could have finished all the work on his own,but he (refer) to the teacher for help.
答案:referred
2.I noticed they (put) up an advertisement in the papers for the position of the sales director.
答案:had put
3.If you finish the task before the deadline,you (have) a new one then.
答案:are going to have/will have
4.You can pick me up at my house at 7:30 pm.I (wait) for you at that time.
答案:will be waiting
5.So far this year we (see) a fall in house prices by 10 percent.
答案:have seen
