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【单选题】
吞噬作用和胞饮作用的主要区别是A.
胞饮作用发生在白细胞中，吞噬作用不是
B.
胞饮作用发生在真核生物中，吞噬作用发生在原核生物中
C.
吞噬作用是主动运输，胞饮作用是扩散作用
D.
胞饮作用主要涉及到液滴态营养物质的吞入
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【单选题】—Come and join us，Jimmy ! —I－m sorry，but I－m really busy now．lf I _______ time，l wo
A.
3． —Come and join us，Jimmy ! —I-m sorry，but I-m really busy now．lf I _______ time，l would certainly go． A． will have
B.
have had
C.
had
D.
have
【单选题】--______ you drive a car? --Sorry, I _______.
A.
Can; can't
B.
Can; can
C.
May; can't
【单选题】--- I’m sorry I have broken your teapot. --- ______.
A.
Don’t be sorry
B.
Sorry to hear that
C.
Forget it
D.
Don’t worry
【单选题】( ) 3.—Excuse me , may I borrow your ruler ? -- Sorry , I don’t have one . --- __________
A.
Thank you all the same
B.
Thank you
C.
You are welcome
D.
Sorry
【单选题】--- I’m sorry, but there is no smoking on this flight． --- Oh, I _________ that．Sorry, I won’t again．
A.
don’t know
B.
didn’t know
C.
won’t know
D.
haven’t known
【单选题】—_________ ．Where's the fruit shop? —I'm sorry．I'm new here．
A.
Sorry
B.
I’m sorry
C.
OK
D.
Excuse me
【简答题】I’m sorry that I am late．（改为同义句） I’m sorry______ ______ ______ ．
【简答题】看图，情景相符的画“√”，不符的画“×”。 ( ) 1. Excuse me. ( ) 2. I have a pencil. ( ) 3. I'm sorry. ( ) 4. I am sad.
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