________ you meet, please say hello to him or her.
A. Whoever B. However C. Wherever D. Whenever
The river is very deep. My mother warns me _________ in it.
A. swim B. not to swim
C. to swim D. not swim
She hardly ever speaks English because she is afraid ________ mistakes _______grammar.
A. to make, of B. to make, on
C. of making, at D. of making, in
I don’t know ______ he will be back ______ the Dragon Boat Festival.
A. whether, on B. if, in
C. whether, in D. that, at
---Have they finished ________ the Water Festival? ---No, they haven’t.
A. celebrate B. celebrated
C. celebrating D. celebration
---Excuse me. Do you know these English words? ---Sorry, I don’t. But you can __________ in a dictionary.
A. look it up B. look up it
C. look them up D. look up them
