We may meet all kinds of difficulties in the future, but we should be confident enough to any challenge.
Don’t complain ________ your teachers________ doing too much homework, because they want you to be the best.
Jim’s mother was shopping ________ her mobile phone rang.
—What ________ you? —I lost my keys.
This is a big problem, can you ________?]
I had a hard time ________ my English last term.