Dr Yuan Longping grows _____ is called super hybrid rice, _____ has a high output.
| A．what; which | B．that; what |
| C．that; which | D．what; that |
The CDs are on sale! Buy one and you get completely free.
| A．other | B．others | C．one | D．ones |
Charles was alone at home, with looking after him.
| A．someone | B．anyone | C．not one | D．no one |
I will appreciate______ if you can give me a hand.
| A．this | B．that | C．it | D．one |
“Susan, go and join your sister cleaning the yard.” “Why ______? John is sitting there doing nothing.”
| A．him | B．he | C．I | D．me |
—Who called me this morning when I was out?
—A man calling ______ Robert.
| A．him | B．himself | C．his | D．不填 |