Ⅰ.单句语法填空
1．He could have finished it on schedule，but somehow he fell behind.
2．Determined (determine) to visit the science museum，she set off at once.
3．In our daily life，it is easy to persuade a woman to_buy (buy) things that aren't suitable for her.
4．People develop a preference for a particular style of learning at an early age and these preferences affect learning.
