Around 1850,a terrible disease ______the potato crop,and potatoes ______bad in the soil.
| A．fight;went | B．hit;went | C．struck;turned | D．attacked;became |
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--- What do you think our guests ___________ be doing at the moment?
--- They must be enjoying themselves at the party.
| A．can | B．must | C．should | D．would |
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Only in this way ______ our goals.
| A．we can reach | B．can we arrive | C．we can arrive | D．can we reach |
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11. Tom wanted to play football after school, but Jack told him ______.
| A．not to | B．not to do | C．not do it | D．do not |
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You can take as many as you can because they are free of ______.
| A．fare | B．charge | C．money | D．pay |
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I don’t think ______ possible to master a foreign language without much memory work.
| A．that | B．which | C．it | D．this |