摘要
Ⅰ.词组填空,每个词组只能用一次,要求选用适当的时态和语态:to slow down,to make great efforts,to go in for,to clear up,to keep on with,to makea note of,to speed(time)on,instead of,to consist of,not only…but also,to lookafter,as soon as1.____hearing the sound of the spark first during a thunderstorm,you hear it after-wards.
出处
《中国远程教育》
1983年第6期5-8,共4页
Chinese Journal of Distance Education
