选词填空 happy, yourself, business, progress, color, begin, visit, able, twice 1. —How long has the nationwide ban (禁止) on plastic bags been put into practice? —At the _____ of June. 2. —I'll fly to Shanghai on _____ next Friday. —Have a good trip. 3. —Mum, I'm sorry I failed my English test again, though I tried my best. —Oh, believe in _____ and you'll make _____ at last. 4. —They are discussing what to do for the _____. —It is necessary to provide them with more positions. 5. There are a lot of _____ flowers on both sides of the streets. 6. Listen! They are singing _____ in the classroom. 7. Tom, take the medicine ____ a day after meals for a week. 8. More and more foreign ____ are interested in Panzhihua.