. -How do you come to school?-By bike. Taking a bus may _______ much money. And walking _______ too much time.
-_______is the old bridge over the river? - Not very wide. It's about three meters.
We didn’t find________ in the picture.
- _______ exercising, and you'll be healthier.
----When did you _________ Suzhou last night? ----At about 9 p.m.
Are they ______ grandparents ?