The first textbooks _______ for teaching English as a foreign language came out in the 16th century.
| A．having written |
| B．to be written |
| C．being written |
| D．written |
相关试题
lish.I was just about to go out last night ______ the telephone rang.
| A．while | B．when | C．as | D．before |
I can’t hear you because there is _________noise there.
| A．very much | B．too much | C．much too | D．so many |
12.He is always ________and never feels tired.
| A．energetic | B．lovely | C．friendly | D．independent |
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