__________ MORE CAREFULLY, HE WOULD NOT HAVE HAD THE ACCIDENT YEST...
17/ __________ more carefully, he would not have had the accident yesterday.
a. If Peter driven
b. Had Peter driven
c. If had Peter driven d.Unless Peter had driven
17/ __________ more carefully, he would not have had the accident yesterday.
a. If Peter driven
b. Had Peter driven
c. If had Peter driven d.Unless Peter had driven