---Why are you busy these days?
-- I am writing a book.
| A．since | B．as | C．for | D．because |
He goes to the movies with his daughter ____.
| A．once a week | B．one times a week |
| C．ones a week | D．two times a week |
____ was your last vacation? Exciting.
| A．How | B．When |
| C．What | D．Where |
It’s too hot. We should ____ the windows ____.
| A．take, open | B．keep, opening |
| C．keep, open | D．keep, opened |
Don’t get off the bus ____ it stops.
| A．then | B．so |
| C．because | D．until |
____is “Lucky 52” shown on CCTV-2? Every week.
| A．How long | B．How often |
| C．How many times | D．How soon |