11、It was already ten o'clock      we got to the museum this morning.

　　A．that                        B．when               C．if                           D．for

　　12、It's a long time       we met last.

　　A．so                          B．after                       C．since               D．before

　　13、That maths problem is       difficult      nobody can do it.

　　A．too…to                                        B．very…that

　　C．so…that                                      D．very …but

　　14、I'll give her the message       she comes back.

　　A．since                     B．before                     C．until                       D．as soon as

　　15、       the teacher came into the classroom, many students were talking to each other.

　　A．While                     B．If                           C．Since               D．When

　　16、People often mistake us for each other      we are twins.

　　A．if                           B．when               C．because                  D．after

　　17、Could you tell me       in your home town in winter?

　　A．if it often snowed                                B．whether does it often snow

　　C．if it often snow                             D．whether it often snows

　　18、Are you sure        Mr. Li will come to your birthday party?

　　A．if                           B．that                        C．for                         D．when

　　19、      Lily      Lucy like singing.

　　A．Either…or                             B．Beither…nor     …

　　C．Both…and                                   D．So…that

　　20、Read the sentences slowly       we can understand what you read.

　　A．so that                    B．before                     C．until                       D．because

　　【答案】：

　　一、

　　1、D             2、A              3、A              4、D             5、C

　　6、A              7、B              8、B              9、B              10、A

　　11、B            12、C            13、C            14、D            15、D

　　16、C            17、D            18、B            19、C            20、A