414. We hoped each other the best of luck in the exam.

413. I didn’t learn to ride a car until I was forty.

412. I wonder if you will be kind to carry the bag for me.

411. Only then did I realized that I had made a mistake.

410. She is thinking about what do next.

409. Will you join in us if we decide to do the new experiment?

408. Man can travel in the space.

407. They spent many years save enough money to build a house of their own.

406. What a fun it is to go swimming in summer.

405. It won’t be long before they will get married.