  Let $P$ be a Delzant polytope in $\mathbb{R}^k$ with $n+k$ facets. We
associate a closed Lagrangian submanifold $L$ of $\mathbb{C}^n$ to each Delzant
polytope. We prove that $L$ is monotone if and only if and only if the polytope
$P$ is Fano. We pose the "Lagrangian version of Delzant Theorem". Then for even
$p$ and $n$ we construct $\frac{p}{2}$ monotone Lagrangian embeddings of
$S^{p-1} \times S^{n-p-1} \times T^2$ into $\mathbb{C}^n$, no two of which are
related by Hamiltonian isotopies. Some of these embeddings are smoothly
isotopic and have equal minimal Maslov numbers, but they are not Hamiltonian
isotopic. Also, we construct infinitely many non-monotone Lagrangian embeddings
of $S^{2p-1} \times S^{2p-1} \times T^2$ into $\mathbb{C}^{4p}$, no two of
which are related by Hamiltonian isotopies.
