-- Whose French book is it?-- It __________ be Lucy’s. Look! Her name is on the book!
.He tries ____ English and he practices _____ English every day.
.—What ________ the twins _________ on weekends? —She usually goes skateboarding.
The weather here is__________ that in Beijing.
It’s good__________your health_________.
__________he is ill, __________he goes to school.