In the experiment you should keep a watchful eye ______ the developments and record every detail.
| A．in | B．at | C．for | D．on |
＿＿many times, he still didn’t make sense of it.
| A．Having been told | B．Then he was told |
| C．Being told | D．He was told |
What you said just now me of that American professor.
| A．mentioned | B．informed | C．reminded | D．memorized |
—— Have you made an apology him breaking his window?
——Yes, I have.
| A．for; to | B．to; to | C．for; for | D．to; for |
Jenny nearly missed the flight＿＿doing too much shopping.
| A．as a result of | B．on top of |
| C．in front of | D．in need of |
He sent me an e-mail, to get further information.
| A．hoped | B．hoping | C．to hope | D．hope |