Sixteen﹣year﹣olds should not to drive．（ ）
A．allowingB．be allowedC．allow
To our surprise， the computer won the chess game against the human player．（ ）
A．certainlyB．usuallyC．finallyD．mostly
In order to sell more products， we need to come up with more ideas．（ ）
A．trueB．commonC．simpleD．creative
This is a private letter Tom． Nobody else can open it．（ ）
A．forB．withC．fromD．about
It takes us less time to go to Beijing because the of trains has increased a lot．（ ）
A．priceB．speedC．spaceD．service
Zhi Yueying ， unusual teacher， has taught in a village school for 37years．（ ）
A．/B．aC．anD．the