I wonder why Sara looks worried today.—I’m not sure，but she 　　　　 a small accident driving here.

aning of a word can be guessedaccording to the context, so you will not __________ refer to a dictionary thenext time __________ you come across a new word

Look! What you’ve done! You _______ more careful.

This is the second time I _______ the Himalayas as a college student

How was your report, Sam — Not bad, but I need to do better in ______.