They signed a contract ____ their opponents to develop the land together.
举一反三
- The contract is signed at ____________________ .
- It is essential that the contract __________ before other companies negotiate with them. A: must be signed B: is signed C: be signed D: to be signed
- The land is sold for ____________ (develop).
- This contract will _________ as soon as it is signed by two parties.
- It is important to develop speaking and listening skills together.