I’ve been working for over twenty years and seldom so tired as now .
| A．I have felt | B．I had felt | C．have I felt | D．had I felt |
The path to dreams may not be smooth and even at great cost, but ______ on to them.
| A．keep | B．go | C．hold | D．pass |
I dislike those programs ______ viewers call in to talk about their private problems.
| A．where | B．that | C．when | D．which |
The hotel turned us down because we didn’t make reservations, but we ______ have.
| A．might | B．can | C．must | D．should |
Home-working opportunities and ______ working hours are top concerns for the working mothers.
| A．accessible | B．reliable | C．changeable | D．flexible |
Personal relationships ______ over years may be lost when we move houses.
| A．building up | B．built up | C．having built up | D．to be built up |