Look at that cat. It looks ________a hat. [ ]

Recently there have been many occasions____ you have attended events on your own.

Where’s her second son? I haven’t seen him for a long time. —He _______ Maine looking for a place to work.

Use your head, _______you’ll work out the problem.

Do you know ________ Jenny comes to school every day?一Of course I do．She rides her bike．