Ⅰ.单句语法填空
1.It took the workers about two years (build) the bridge over the river.
答案to build
2.I am having problems my pronunciation and I need your advice.
答案with
3.It is important to know they are willing to help us or not.
答案whether
4. my opinion,you’d better go and make an apology to her.
答案In
