Trees can stop the sand _____ towards the rich farmland in the south.
—We are going to play in tomorrow’s football match.I feel very nervous.Dad.—________.I'm sure you can win the match.
The man ________ is talking to our teacher is Betty’s father.
If you have trouble pronouncing these words, you can repeat them over and over again ________ you are comfortable with them.
一Would you like to go to the amusement park?—If Jack does,________.
—It’s difficult to get to the other side of the river.—I think a bridge ________ over the river.