1. Thank you very much for the flowers you ............. me last night.
A. send B. sent C. sending D. sended
2. English ......................... all over the world.
A. speak B. spoke C. is spoken D. spoken
3. It is difficult .................. him.
A. understand B. understanding C. understood D. to understand
4. She has lived here ....................... 1990
A. since B. at C. for D. in
