When she heard from the hospital that her father had died, she _____ into tears.
| A．burst | B．went | C．exploded | D．fell |
If you already have health insurance，the only change ________ you'll see under my plan is lower premiums．
| A．what | B．which | C．why | D．不填 |
Paul attends very ________ meetings，and when he does，he has very ________ to say．
| A．little；few | B．few；little | C．a little；a few | D．a few；a little |
It is believed that health problems are closely connected with bad eating habits and a _______ of exercise.
| A．limit | B．need | C．lack | D．demand |
－Is John coming by train?
－He __________, but he can’t. All the trains have been cancelled because of the snow.
| A．may | B．will | C．must | D．should |
You've missed your ____， and you will have to wait for the next round.
| A．chance | B．turn | C．time | D．part |