—Oh, my God！Our teacher is so mean!
—Calm down, my friend.Even though she is tough sometimes, she ________ be nice if you really work hard.
| A．must | B．should |
| C．can | D．shall |
______ a good result，the professor decided to do the experiment once more．
| A．Not getting | B．Getting not | C．Not having got | D．Having not got |
Mr．Shaw can’t get promotion ________ his lack of qualifications．
| A．thanks to | B．for | C．because | D．because of |
They are _______ little children that you can’t blame them ______ much．
| A．so; so | B．so; too | C．such; too | D．such; such |
The building ______ next year will be a restaurant．
| A．having been built | B．to be built |
| C．being built | D．built |
---I fell off my bicycle and broke my leg yesterday．
---Is that ____ you drank too much？
| A．why | B．how | C．because | D．when |