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一、用所给动词的适当形式填空.

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一、用所给动词的适当形式填空.

Jim,together with his classmates,______(play) table tennis now.

Last Sunday morning,i did noting but ______(write) a letter to my grandma.

When the traffic ______(stop),you can cross the road.

They needed ______(climb) the tree with a ladder.

一、单项选择.
(     )1.Tigers live as a family ______ baby tigers are 2-3 years old.
        A.and                         B.but                         C.or                         D.until
(     )2.If i don't buy them,______ will buy them.
        A.else someone         B.else anyone           C.someone else      D.anyone else
(     )3.It  is very difficult ______ giant pandas ______ inthe wild.
        A.of,to survive         B.for,to survive       C.for,surviving       D.of,surviving
(     )4.I won't believe that  he can do it ______ i see it with my own eyes. 
        A.until                        B.after                       C.when                     D.if
一、用所给动词的适当形式填空.
Is playing (此题为现在进行时,形式为be doing) to write (在do nothing but to do 的句型中,前一个do根据时态而而变化,而后一个不变化,to也可以省略.这是一个特殊句型,需特殊记忆.)stop (后半句是一般现在时时态,则前后时态统一.)climb.A.C(不定代词放在形容词前) C (介词后动词用ing形式).B