It is impossible for us to carry the stone statues, all of______ are too heavy.
| A．which | B．them | C．those | D．what |
（重庆卷32）. Today, we will beginwe stopped yesterday so that no point will be left out.
| A．when | B．where | C．how | D．what |
. Because of the heavy traffic，it was already time for lunch breakshe got to her office.
| A．since | B．that | C．when | D．until |
（陕西卷20）. John thinks it won’t be long he is ready for his new job.
| A．when | B．after | C．before | D．since |
．（山东卷28）. The school rules state that no child shall be allowed out of the school during the day, ______ accompanied by an adult.
| A．once | B．when | C．if | D．unless |
．（辽宁卷29）. The old man asked Lucy to move to another chair _______ he wanted to sit next to his wife.
| A．although | B．unless | C．because | D．if |