Private cars are required to take turns off roads one out of five weekdays ____the
traffic pressure.
| A．to reduce | B．reducing |
| C．reduce | D．reduced |
When on holidays, the railways put on _______trains to make people’s travel more convenient．
| A．special | B．regular | C．particular | D．unusual |
— Ring me at six tomorrow morning, will you?
—y that early? I ______ ．
| A．will be sleeping | B．have slept |
| C．have been sleeping | D．will sleep |
It makes his life quite different ________he has received education abroad．
| A．that | B．which | C．what | D．how |
_______ you call me to say you are not coming, I’ll see you at the theatre．
| A．Until | B．If | C．As | D．Unless |
He apologized for his mistake, saying that he ___________no offence．
| A．supposed | B．intended | C．considered | D．pretended |