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We _______ leave now if we want to catch the train.

• can

• needn't

• must

• shouldn't

You _______ eat so much junk food. It's not good for you.

• may

•    shouldn't

•   can

•   must

You _______ be noisy in the library.

• can't

• mustn't

• shouldn't

• might

They _______ go to the concert last night. They had tickets.

• can

• must

• shouldn't

• couldn't

He _______ finish the report by tomorrow if he works late tonight.

• can

• couldn't

• must

• shouldn't

If you want to speak English better, you should _____ it regularly.

• practice

• practicing

• to practice

If you don't want to be punished, you have _____ your homework.

• finish

• finishing

• to finish

If she ______ quickly, she will get the first prize.

• runs

• ran

• will run

• would run

If you speak louder, I ______ you.

• understands

• understood

• will understand

• would understand

If he ______ hard, he will get bad marks.

• studies

• studied

• will study

• would study