Ⅰ.单项填空
1.(2021·天津卷)Mary became a baker at age 14,because her grandfather paid the local baker her all the skills.
A.to have taught B.to teach
C.teaching D.having taught
2.(2021·天津3月卷)It used to be that you drive for miles here without seeing another person,but now there are houses and people everywhere.
A.need B.should
C.could D.must
3.(2020·天津5月卷)Don't be late for the 9:00 meeting because I am and have to catch the 11:00 train.
A.on a limited budget B.in high spirits
C.on a tight schedule D.in deep doubt
