-____you interrupt now? Can’t you see I’m on the phone?-Sorry Sir, but it’s urgent.
._____ we can pass the coming examination will mainly depend on _____ we learn and _____ learn it.
I’m afraid taking a part—time job might ____ my time for study.
Was it not until you began to work ___ how much time you had wasted?
The city ________ against the terrible possibility of such things happening again.
.I’m sorry, but I didn’t mean to be rude to you. Can you______ me?