—How much do you know about the 3D film technology?
—A little. Not until _______ the hot movie Avatar _______ something about it.
| A．did I see; did I begin to learn | B．I saw; did I begin to learn |
| C．I saw; I began to learn | D．did I see; I began to learn |
We thought there were 35 students in the dining hall, ____, in fact, there were 40.
| A．while | B．whether | C．what | D．which |
She is very ______ about her ugly appearance, so you shouldn’t stare at her.
| A．sensible | B．sensitive | C．suitable | D．acceptable |
I don’t think the experiment is ______ failure. At least we have gained ______ experience for future success.
| A．/ ; the | B．a ; the | C．a ; / | D．/ ; / |
She is a strong willed woman and not oncein to any difficulty in her life.
| A．she has given | B．did she give | C．she gave | D．has she given |
—How long have you retired, Grandpa?
—Well, four years, But you know, I for Courtaulds for over forty years.
| A．have worked | B．worked | C．had worked | D．Work |