21. The _____ girls and _____ boys successfully hosted the WFLS 2019 New Year Party (the Grade Two).
A. two---two B. three---three C. four---four D. four---two
22. If it had not been for the help from the Students’ Union, the party ______ so smoothly.
A. should go B. would go C. wouldn’t have gone D. shouldn’t have gone
23. The dancing from class seven is ______ wonderful ______ many teachers are enchanted by their performance.
A. such---that B. such---which C. so---that D. so---which
24. Huawei’s Kunpeng 920 Central Processing unit features 25% better computing performance than its peers and it can ______ power consumption by 30%.
A. supervise B. survive C. represent D. reduce
25. It is reported that an explosion at Beijing Jiaotong University killed three students on Dec 26th, 2018. The accident happened in a lab ______ students were conducting a scientific experiment on landfill sewage treatment.
A. that B. which C. where D. why
