His writing is so confusing that it’s difficult to make out ________ it is he is trying to express.
. Look at the picture. The painter, I think, is the most ______ artist in the country.
Mary ought to attend school this autumn, but she ______ up early in the morning.
----Will you go shopping now? ---- Not until I _______ my experiment.
------I’m worrying about my coming examination. ------Well, you will succeed in the end _______ you work with a strong will.
The magazine I like best _________ once a month.