________ several times，but he still doesn’t know how to do it correctly

Fewer and fewer people spend time reading. There were only 49% of adults in the US ________ visited a public library last year.

She may have missed the train, in _____ case she won’t arrive for another hour.

I am really shy. Idon’t know anyone there

hough the conference hall is near his apartment, he has to hurry a little if he wants to be_____.