In our country，you should shake hands with others when you meet them________the first time．
| A．at |
| B．for |
| C．in |
| D．on |
He never takes exercise and eats too much junk food．He is becoming________than before．
| A．strong |
| B．stronger |
| C．weak |
| D．weaker |
—Do you agree________me？
—Yes，I d0．Drinking milk is good________our health．
| A．with；at |
| B．with；for |
| C．to；at |
| D．to；for |
Everyone was________when they heard the________news．
A．exciting；exciting
B．excited；exciting
C．exciting；excited
—How long________you________？
—For about two years．
| A．have；married |
| B．did；married |
| C．have；been married |
| D．have；got married |
—The air pollution is terrible．
—It will be worse________we take action to protect the environment．
| A．if |
| B．unless |
| C．until |
| D．when |