I could _______ by the way she walked that her knee was still bothering her.
---- ? You look really down.---- I’m so tired of my job. There are endless problems to deal with.
Tony ____ the invitation, otherwise he would have attended your birthday party.
The teacher’s encouragement doesn’t ______ mean your progress, so you should try your best as well.
----What are you going to do on May Day?---- . If weather permits, I may go mountain-climbing with my friends.
—You could always put the decision off a little bit longer. —_______If I leave it much longer I might miss my chance.