Mother’s Day ____ on the second Sunday of May, a different date every year.
| A．celebrates | B．falls |
| C．observes | D．cheers |
There is only one of the oldest customs that ________ in this district so far.
| A．was kept | B．were kept |
| C．has been kept | D．have been kept |
_______ with so much trouble, we failed to complete task on time.
| A．Faced | B．Face | C．Facing | D．To face |
When we visited our headteacher again ten years later, he had changed so much that we could hardly ________ him.
| A．remember | B．know |
| C．believe | D．recognize |
Your new product ________ better if it is advertised on TV.
| A．sells | B．sold | C．will sell | D．would sell |
______ has finished the work ahead of time will be rewarded though we don’t know______ it will be.
| A．Who; who | B．Whoever; whoever |
| C．Who; whoever | D．Whoever; who |