She didn't come to his birthday party just_____ what he had said to her the day before.
| A．because | B．because of |
| C．as a result | D．thanks for |
—Hi, Albert, I can’t find my reference book!
—Sorry, I ______ it and I guess I put it on the top shelf with my things．
| A．use | B．had used |
| C．am using | D．used |
If you ______ an hour earlier, you wouldn’t have been caught in the rain．
| A．has returned | B．returned |
| C．had returned | D．will return |
I’d like to recommend some new computer programs _______ for home buildings．
| A．designing | B．designed |
| C．to design | D．design |
We haven’t discussed yet ______ we are going to place our new piano．
| A．where | B．which | C．what | D．that |
She has owned the painting since 1950, when it ______ to her as a wedding present．
| A．has given | B．gave |
| C．was given | D．has been given |