【题目】We _________ about 1,600 English words since we began to learn the language.

【题目】We _________ dinner when she came in.

【题目】Please write down _____ you can in your exercise-books.

【题目】_____ your sweater. It's cold outside.

【题目】My sister _____ a teacher two years ago.

【题目】My parents asked me ______ my sister with her schoolwork.

【题目】Sir, would you mind not here, please?

【题目】Miss Green isn’t in the office. She to the library.

【题目】—____ does he work?

【题目】I was nearly late for class yesterday morning, but I only _____ my class.