1. He'd rather _________ at home. A. to stay B. staying C. stayed D. stay 2. Nam is very homorous. His joke makes me _______ a lot. A. laugh B. to laugh C. laughing D. laughed 3. They saw him _______ the agreement. A sign B to sign C. to signing D. signed 4. It's necessary for her _______ back home before 10 p.m A. coming B. come C. came D. to come (Giải + cấu trúc)