How long do you think­­­_________Obama officially takes office in the White House?

We don’t like him because he is always speaking highly of the part he________in the group. [ ]

I feel so tired after a long walk.— You had better have a ______.

w lecture course differs fromthe old one, ________ the students aren’t required to attend lectures.

Mr. Cool often does exercise in the park ________ Saturday morning.