I’m sorry I didn’t phone you, but I’ve been very busy ____ the past couple weeks.
. . John promised his parents he _______ not smoke again, and he has not smoked ever since.
. My brother left home five years ago. I _______ nothing from him up to now.
. . The power to our region has been _______ by the heavy snow.
. . Though he graduated from a famous university, he was _______ failure as _______ teacher.
. . Loving your children doesn’t mean _______ them whatever they want.