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— Tony, are you listening to me?

—Sorry, Sir. I ______ to figure out what you said just now.

    A. was trying   B. have tried   C. tried    D. had tried

The parking rules in public places should be ______  strictly， otherwise you will get a ticket.

A. realized B, recognized   C. consulted    D. observed

No matter how  ______，scientists are eager to know more about it by exploring.

A. an ocean may be deep B. deep may an ocean be

C. deep an ocean may be D. may an ocean be deep

After a long absence, I went back to college, ______ to pick up where I'd left off．

    A．hoping        B．hope           C．to hope              D．hoped

We saw ____ audience clapping their hands when ______ popular singer appeared on the stage．

    A．the; the         B．the; 不填                      C．a(chǎn)n; a            D．不填; the

One of the glorious moments in my school life was       I was awarded the Mayor’s Award．

    A．why  B．how      C．that     D．when

In order to help the police ，the witness described what he had seen very carefully not to ______ any detail.

A. act out  B. leave out    C. pick out D. put out

Having received my wishes, Jane replied with a message ______ she used “U2”

instead of ‘‘you too” .

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

––I didn’t go to work yesterday because my car broke down.

––You _____ mine. I wasn’t using it then.

A. might borrow    B. should borrow   C. must have borrowed   D. could have borrowed

--- I’d like to try something different as I’ve got tired of watching cartoons all the evenings.

  --- __________

   A. Go ahead.          B. It depends.            C. What for?        D. Like what?