--- Will you go to her birthday party?
--- Of course I will if ______.
A. having invited B. invited C. she inviting D. I invite
Would it be ______ for you to pick me up at one o’clock and send me to the school?
A. free B. vacant C. handy D. convenient
When he was young, he used to ______ hard at his lessons.
A. devote to working B. devote himself to work
C. be devoted to work D. be devoted to working
Mary is very clever and ______ worth teaching, but her brother is not．Look, he is now ______ asleep in class．
A．very, very B．much, very C．well, fast D．well, very
--- Could you be so kind as to close the window?
--- ______.
A. With pleasure B. Go ahead C. Yes, please D. That's nice of you
— We did not see him at the lecture yesterday．
— You ______ him, since I went to an international conference with him．
A. mustn’t have seen B. can’t have seen
C. couldn’t see D. needn’t have seen
