I can think of many cases, ________students obviously knew a lot of English words and expressions but couldn’t write a good essay.

I’m very worried about tomorrow’s mathtest . I’m afraid I can’t pass this time.—____! I’m sure you’ll make it.

Where do you think ________

It was in the small house _____ was built with stones by his father _____ he spent his childhood.

Mary had to go to a meeting, so she left her children________at home. [ ]