---Will you please stay here for the party?
---Sorry, I _____. I have to go to visit my grandfather in hospital.
| A．mustn’t | B．needn’t |
| C．can’t | D．won’t |
China is getting more and more independent of Western technology， _____ it is leading in many fields， such as the self﹣driving car industry．（ ）
A．/B．orC．butD．and
﹣My grandpa practices playing the guitar______ in the university for the elderly every day．
﹣cool! It's never too old to learn．（ ）
A．hardB．hardlyC．greatD．greatly
According to a survey， four out of five women do housework at home， but only______of men would do it．（ ）
A．four fifthB．four fifths
C．two fifthD．two fifths
Boxing Day， the 26th of December， got_____name from a time when many rich families gave boxes of gifts to poor people who had to work at Christmas．（ ）
A．it'sB．itsC．one'sD．one
﹣ How soon will we get the offer from a new high school？
﹣_____ about two months．（ ）
A．InB．ForC．AmongD．During