Father is too tired today. Don’t call him ________ it is necessary.
A.if B.unless C.when D.whether
I will volunteer for a two-day home stay for an exchange student from the UK. I consider it a good chance to show Chinese food________our kindness.
A.as well as B.so well as C.as good as D.so good as
Some primary and secondary schools ________ winter sports to their courses since Beijing won the right to host the 2022 Winter Olympic Games.
A.added B.will add C.have added D.were adding
More and more teenagers have poor eyesight, so parents and teachers should take actions ________ the situation from getting worse.
A.stop B.stopping C.stopped D.to stop
This pair of trousers ________ smooth because they are made of Chinese silk.
A.feels B.feel C.is felt D.are felt
— Andy practiced hardest among us and he won first prize in the competition.
— A dream can’t come true ________ hard work.
A.by B.across C.over D.without
