1. Two middle-aged passengers fell into the river, ____ neither of them could swim.
A.fortunately B. luckily C. unfortunately D. naturally
2. You can cook dinner if you promise not to ____ a mess in the kitchen.
A. make B. have C. do D. get
3. Washington, a state in the United States, was named ____ one of the greatest American presidents.
Ain honour of B. instead of C. in favour of D. by means of