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At last, we found ourselves in a pleasant park with trees providing shade and __________down to eat our picnic lunch.
| A．sitting | B．having sat | C．to sit | D．sat |
This is not an economical way to get more water; ____, it is very expensive.
| A．on the contrary | B．on the other hand |
| C．on the whole | D．on earth |
_____ Barbara Jones offers to her fans is honesty and happiness.
| A．Which | B．What | C．That | D．Whom |
The most delicious cake in the world____ by mom. Please wait an hour to enjoy it.
| A．makes | B．is made | C．is being made | D．is making |
It can’t be a(n) _____ that four jewelry stores were robbed in one night.
| A．accident | B．coincidence | C．incident | D．chance |
Distance learning is being _____ in several countries to help children in remote rural schools obtain higher education.
| A．attended | B．adopted | C．adapted | D．admitted |