We all know travel can ______ our knowledge of the world.
A. discover B. develop
C. increase D. review
—What are you doing this weekend?
—I ________ visit my uncle,but I'm not sure.
A. needn't B. must C. might D. mustn't
—Be quiet!Mr.Smith is coming.
—Don't worry.It ________ be him.Mr.Smith is much taller.
A. mustn't B. must C. can't D. might
I saw Li Ming ________ in the river just now.He must still be near here.
A. plays B. playing C. to play D. played
—Can you ________ something delicious?
—Yes,Mom is making chicken soup in the kitchen.
A. smell B. produce C. rush D. list
Dad is very angry with me.I don't ________ to speak to him now.
A. manage B. regret C. dare D. fail