Mary_____beinLondonbecauseIsawherintownjustnow.

So difficult __________ it to adapt to the academic requirements of a Western university that I determined to take a preparation course.

Has Peter handed in his paper yet?—I’m not sureHe _______ on it last week

I don’t know he will come tomorrow, he comes, I will tell you.

Why do you look sotired ? —-_______I am writing a reportfor the newspaper.