13. He drove fast so that he might reach the airport in time
A noun clause B. adjective clause C. adverb clause D. main cause
14. The professor was speaking so softly that we could not heat him at
B. adjective clause C. adverb clause D. independent
15. The gardener said that all the plants had been pruned neatly
A noun clouse B. adjective clause C. adverb clause D. main cause
A noun clause​