The problem is___but easy.I can’t work it out
______ a new house is impossible for the young couple because they haven't saved enough money.
It is believed ______ children should learn to be responsible from the very beginning.
—Do you have any plan for this Sunday? —Yes, I ______ shopping with my friends.
The best way ______ how to drive a car is to practice with a driving instructor.
I have watched a number of movies recently,______ none of them have impressed me.