What’s your favorite , Bob—Cats. They’re so lovely.

Jack often _____ music after class.

ighways have been built inChina,___________it much easier for people to trave form one place toanother.

Mum，do you know where my Dad is—I don’t know. Perhaps he ________ trees now.

Einstein liked Bose’s paper so much that he ________ his own work and translated it into German.[ ]