Don't blame such a small boy any more. Even the wisest___ make a mistake sometimes.
| A．must | B．can | C．should | D．shall |
Fleming discovered penicillin almost by______.
| A．experiment | B．hand | C．accident | D．theory |
I really don’t understand how he can ______away with cheating.
| A．make | B．run | C．steal | D．get |
This year, many Chinese people turned to flowers instead of paper money to have a green Tomb-sweeping Day ______ memory of their lost relatives.
| A．on | B．in | C．for | D．to |
Danby left a message with the professor_________he would call again in the afternoon.
| A．who | B．that | C．as | D．which |
．When you look for a job, it’s not your book knowledge but your experience ________matters more.
| A．whether | B．which | C．what | D．that |