一、单句语法填空
1.Silk (become) one of the primary goods traded along the Silk Road by about 100 BCE.
2.When walking down the street,I came across David,whom I (not see) for years.
3.Just as I got to the school gate,I (realise) I had left my bag in the cafe.
4.Jack (work) in the lab when the power cut occurred.
5.I went to Ningxia and (stay) there for one year,teaching as a volunteer.
6.Sofia looked around at all the faces; she had the impression that she (see) most of the guests before.
7.During his stay in Xi’an,Jerry tried almost all the local foods his friends (recommend).
8.She (phone) someone,so I nodded to her and went away.
9.I found the lecture hard to follow because it (start) when I arrived.
10.The twins,who (finish) their homework,were allowed to play badminton on the playground.
11.Writing out all the invitations by hand was more time-consuming than we (expect).
12.Oh,no!We’re too late.The train (leave).
13.I felt very tired when I got home,and I (go) straight to bed.
14.He was unhappy when he sold his guitar.After all,he (has) it for a very long time.
15.I’m calling about the apartment you (advertise) the other day.Could you tell me more about it?
