It’s _____ he’ll be able to come. A、doubt whetherB、doubtfulC、doubt itD、doubtful whether
It’s _____ he’ll be able to come.
A、doubt whether
B、doubtful
C、doubt it
D、doubtful whether
相关考题：
Computers are()of doing billions of calculations in a fraction of a second now. A.able;B.capable
Mary is a very()woman. She is successful in her career and she is a good mother and wife, too. A.able;B.capable
Such suffixes as " － able" and " － ment" in Modern English originally came from_______ A FrenchB Old EnglishC LatinD Greek
I’m sorry; this kind of T-shirt is not ______ in your color and size.A、unavailableB、availableC、avoidableD、able
选哪一个He’s watching TV? He’s _______ He’swatchingTV?He’s________tobecleaninghisroom.A)knownB)supposedC)regardedD)considered
下面的文法中属于LL（1)文法的是A．G(S): S → ABc A → a | e B → b | eB．G(S): S → Ab A → a | B | e B → b | eC．G(S): S → ABBA A → a | e B → b | eD．G(S): S → aSe | B B → bBe | C C → cCe | d
下面的文法中属于LL（1)文法的是（）。A．G(S): S → ABc A → a | e B → b | eB．G(S): S → Ab A → a | B | e B → b | eC．G(S): S → ABBA A → a | e B → b | eD．G(S): S → aSe | B B → bBe | C C → cCe | d
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