Li Ming is said ______ the experiment in the lab, but I can’t find him there.
| A．to have done | B．to do | C．to be doing | D．doing |
________ enough time, but I couldn’t do it better.
| A．I was given | B．Given | C．To be given | D．Though I was given |
She said she would work it out herself, ________ ask me for help.
| A．and not to | B．but not | C．and prefer not | D．rather than |
________ a difficult situation, so you should send him a message and give him some advice.
| A．As he is in | B．He is in | C．Being in | D．He being in |
—Oh, I failed again
—Don’t lose heart. One more effort, ________ you will succeed.
| A．so that | B．therefore | C．however | D．and |
I told Sally how to get here, but perhaps I _______ for her.
| A．had to write it out | B．must have written it out |
| C．should have written it out | D．ought to write it out |