They haven’t seen each other for ten years, but they still keep in___contact with each other.
.When he goes out, he often wears sunglasses _______nobody can recognize him.
The desks in our classroom are so close together that there is not enough room to move them.
_______ travelling expenses rising a lot, we had to change all our plans for the tour.
Professor Wang ________in our school till next Sunday.
—I’m going to order chicken and salad.What about you? —.I’ll have the same.