Can I say,<br/><br/>(1) Sh<u>e is opening </u>the pineapple can.<br/><br/>(2) They<u> practise for</u> the competition.<br/><br/>(3) They <u>went for a shopping</u> to buy furniture.<br/><br/>(4) His grandfather is<u> smilling for happiness.</u><br/><br/>(5) He <u>heard a bud thunder </u>just now.