______ you ever have any trouble, let me know

Now that we have settled the question of feasibility(可行性), let’s proceed to the next one ─_____ raise the fund from the bank.[ ]

You should have thanked her before she left.—I meant ________, but when I was leaving I couldn’tfind her anywhere.

She ________ his number in the phone book to make surethat she had got it right.

The man_______in a blue jacket at the partywas a doctor.