I'm afraid I'll have to; my mom is calling me for supper.
| A．ring off |
| B．ring back |
| C．ring up |
| D．ring in |
How I was _______when I heard the _______ news!
A. excited; excitedB. exciting; exciting.
C excited; exciting D. exciting; excited
Those who are ______ their present situations will surely make no more advances in life.
| A．content to | B．satisfied of | C．pleased to | D．content with |
He injured his leg and______ he could not play in the game.
| A．so | B．however | C．therefore | D．but |
At the meeting they discussed three different _______ to the study of mathematics.
| A．approaches | B．means | C．methods | D．ways |
The famous scientist grow up________ he was born and in 1930 he came to Shanghai.
| A．when | B．in which | C．where | D．wherever |