.Thereisalotofsmokecomingoutof

.---There is a lot of smoke coming out of the teaching building.
---Really? It _____be a fire, most probably.

A．can

B．ought to

C．have to

D．must

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相关试题

The children loved their day trip，and they enjoyed the horse ride.

A．

most

B．

C．

less

D．

little

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Progress _____ so far very good and we are sure that the work will be finished on time.

A．was

B．had been

C．has been

D．will be

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Charles was alone at home，withlooking after him.

A．

someone

B．

anyone

C．

not one

D．

no one

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He ______ at the meeting, but his heart attack prevented him.

A．will speak	B．is going to speak
C．had to speak	D．was going to speak

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Remember to send me a photo of us next time you ______ to me.

A．are writing	B．will write
C．has written	D．write

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