—Is there anything I can do for you?—There seems to have been a technical problem—______，that’s what they told me．

I have little doubt about his competence; ______, he is well-qualified for the job. 

Tell your brother to come _____, because it's going to rain in a minute or two.

 the patient’s progress was encouraging as he could ______ get out of bed without help.

—Excuse me, would you mind answering a few questions?—Well, I don’t know．I’m in rather a hurry ________．