e dropped_______ “s” in the word “acros”.—Oh, ______letter “s” should be doubled like this“across”.

Think twice and time will _____what you have chosen is right or not .

The pen well, so it ___ well

fter the mud-rock flow hit Zhouqu, GansuProvince, many soldiers came to the ______ as many people were trappedunderground.

It is _____third time that John has failed, but he still hopes to have_____ fourth try.