填空题 Complete the following sentences according to the Chinese given. 1. Jack often watches TV _______________ (直到半夜). 2. Sleeping helps us grow __________________ (更高更强壮). 3. If teenagers want to __________ (保持健康), they should get enough sleep every day. 4. I usually ________________ (散步) after supper. 5. Which sports do you like better, __________ (打网球) or __________ (骑自行车)