—Why didn"t you try your best to get on the bus?—I tried to, but ________ I coul

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—Why didn"t you try your best to get on the bus?
—I tried to, but ________ I could, it started moving.[     ]
A. until
B. when
C. before
D. after

答案

举一反三

He had already walked three or four miles ________ he saw a cart, half-full of hay,
by the side of the road. [     ]
A. while
B. when
C. the moment
D. unless

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My grandpa sowed the flower seeds in the garden ________ it was the best time for them to grow. [     ]
A. where
B. when
C. that
D. until

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Much _______ the young couple needed money to make the down payment for the apartment,
they wouldn"t ask their parents for help. [ ]
A. although
B. as
C. even if
D. while

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I would appreciate it ________ you can help me with my English this afternoon. [     ]
A. because
B. until
C. when
D. if

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________ he has limited technical knowledge, the old worker has a lot of experience. [     ]
A. Since
B. Unless
C. As
D. Although

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