, can I speak to Mr. Smith—I’m sorry, but it is 3 weeks _____ heworked here.

.Wait till you are more ______. It’s better to be sure than sorry.

We are afraid we can’t finish the task ________ a month.-Take your time, but next month you’ll have a new one.[ ]

____ you American —-No, I ___ English.

er the first time we met, Mary—Sure．You ______ in the supermarket．