____, or we will be late for the meeting!

Whose advice should we take—________.

Only since they gave up that good chance＿＿＿ to show their invention again.

I think the environment is becoming worse and worse.— Yes, I really don’t know we can do about it.

Mother ______ the baby gently on the bed and then bent down to pick up the toy _____ on the ground.