Ms. Claire is a strict but kind teacher, _____ I respect and appreciate most.
| A．that | B．what | C．one | D．which |
Plants grow well ______ there is plenty of water and sunshine.
| A．which | B．in which | C．that | D．where |
—Did you write to Grace last summer?
—No, but I'll ______ her over Christmas vacation.
| A．be seen | B．have seen | C．be seeing | D．to see |
In summer people usually stay up late outside, ______ the cool air.
| A．enjoy | B．enjoying | C．to enjoy | D．enjoyed |
The foreiger knows little about ______ is called "Hope Project" in China.
| A．what | B．that | C．which | D．it |
He was born ____ a very cold night _____ December.
| A．in; in | B．In; of | C．on; in | D．on; of |