e dropped ________ “s” in the word “acros”—Oh, ________ letter “s” should be doubled like this “across”

Some analysts predict that slowing economic growth ________ enterprises reduce their intake of new workers. [ ]

Some cyclists make the ______ that traffic laws do not ______ them. It is not true, _____.

Whose book is it— I asked many people, but knew.

Our monitor is the first person we can think of ________, for he is always willing to help ________ is in trouble.