12. （ ）

(单选题)16.（   ） (单选题)Try to understand what’s actually happening instead of actin (单选题)Around 13,500 new jobs were created during the period, _____ (单选题)Self-driving is an area ______ China and the rest of the wor (单选题)Scientists have obtained more evidence ______ plastic is fin (单选题)—Let’s take a coffee break.— ______ We’ve been working for h (单选题)—Can you tell us your ______ for happiness and a long life?— (单选题)The number of smokers, ______ is reported, has dropped by 17 (单选题)—Father, you promised!—Well, ______. But it was you who didn (单选题)He got very good marks in the entrance exam and was admitted