It was in the lab_________was taken charge of by Johnson_________they did the experiment.
| A．where; which | B．which; that | C．which; which | D．that; which |
—I had a good holiday at my uncle's. —________ .
| A．Oh, that's very nice of you | B．Congratulations | C．Oh, I'm glad to hear that | D．It's a pleasure |
Chicago is on _____ Lake Michigan. There is nothing in the world like ____ Chicago meat industry.
| A．the；the | B．不填；不填 | C．the；不填 | D．不填；the |
My parents used ________they had to get a new car for my brother.
| A．which | B．all what | C．what | D．不填 |
Now then, children, Its time you ________.
| A．were washed and dressed | B．washed and dressed |
| C．are washed and dreesed | D．washed and dress |
__________ full preparations, we decided to put off the meeting till next week．
| A．We did not make | B．Having not made |
| C．We had not made | D．Not having made |