When you have difficulty, do remember to _________. Two heads are better than one.
Would you mind ________ me how ________ English words?
— What kind of movies do you like? — I like the movies ________are about Chinese history.
― How do you feel when you watch the national flag go up? ― It makes me ________ very proud.
— Which month has ________ days in a year? — February.
We should never ________till tomorrow what we can do today.