你可能感兴趣的试题
take up take off take on take place
should might needn’t couldn’t
How was it? How are you going? Is that right? Cool!
/ ; an / ; the the ; a the ; /
/ ; an / ; the the ; a the ; /
I heard I had heard did I hear have I heard
heard heard of heard from have heard
invention information instruction introduction
heard about have heard about heard have heard
How do you find it? What if What time is it? What’s the weather like?
have heard from since have
situations facts chances possibilities
In case Though Even In spite of
Do you have Did you have have you had Had you had
the; a the; the a; a a; the
heard of heard about heard from heard
heard will hear have heard had heard
might not have heard should not have heard mustn’t hear shouldn’t hear
have heard from since have