资源介绍:对初中常见知识进行选择专练,全面完整。
( )21. He is very old, _______ he still works very hard.
A. if B. when C. so D. but
( )22. The Italian boy was regarded as a hero ______ he gave his life for his country.
A. why B. so that C. because D. but also
( )23. You’ll miss the train _____ you hurry up.
A. unless B. as C. if D. until
( )24. Speak to her slowly ______she may understand you better.
A. since B. so that C. for D. because