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Please _____________ . The class is too noisy.

A．calm down        B．settle down        C．come up          D．a(chǎn)dd up

In China, the number of cities is increasing _____ development is recognized across the world.

A．where            B．which            C．whose            D．that

Our teacher told us that there ______ no end to learning.

A．was              B．has              C．is                D．have

Although he lived ____ in a ____ mountain village, he didn’t feel ____ at all.

A．a(chǎn)lone; alone; lonely                     B．a(chǎn)lone; lonely; lonely

C．lonely; lonely; alone                     D．lonely; alone; alone

Do you have any difficulty ______ these flowers? I’d like to help you if you need.

A．to plant           B．for planting        C．with planting       D．in planting

Look at the timetable (時(shí)刻表). Hurry up! Flight 4026 _______ off at 18:20.

A．takes             B．took              C．will be taken       D．has taken

He is the man _________ you can turn when you are in trouble.

A．that              B．which            C．to whom          D．to him

Only when I left my parents for Italy _____ how much I loved them.     

A．I realized          B．I had realized       C．had I realized       D．did I realize

Mr. White told us _______ run up and down the hall.

A．don’t           B．didn’t           C．not to            D．to not

I can never forget the days _____ we worked together　and the days ______ we spent happily together.

A．for which; that     B．which; when       C．when; which       D．on which; when