Although I tried my best to convince them _____the importance and urgency of the operation, the doctors were not convinced _______ it immediately.
Much to my, I’m unable to accept your kind invitation.
—Shall we hang out tomorrow morning? — ________ I’ll save the morning for my homework.
I have been in low spirits ______she left our school
We have to ________ the picnic because of the heavy rain.
You must turn off the gas after cooking. You can never be ______ careful with that.